c語言程序設(shè)計(jì)實(shí)驗(yàn)指導(dǎo)(顏暉_主編)高等教育出版

1、c語言程序設(shè)計(jì)部分實(shí)驗(yàn)參考答案實(shí)驗(yàn)2include <stdio. h>int niciino /2-1-2int c, f=150;c=f*5/9-32*5/9;printf ("fahr=%d, celsius=%dn", f, c);return 0;#include <stdio. h>int main() /2-l3int c=26, f;f=c*9/5+32;printf ("celsius二%d, fahr二%dn", c, f);return 0;#include <stdio. h>int maino

2、 /2-1-4int math二87, eng二72, comp二93;printf (，math=%d, eng=%d, comp=%d, average=%dnz，, math, eng, comp, (math+eng+comp) /3);return 0;include <stdio. h>int niciino /2-1/5int n=152, a, b, c;c=n%10;b=(n/10)%10;a=n/100;printfc整數(shù)%d的個(gè)位數(shù)字是%d,十位數(shù)字是%d,百位數(shù)字m%dn，z, n, c, b, a);return 0;#include <stdio.

3、 h>int maino /2-1-6int x二3, y;y二x*x;printf("%d=%d*%dn", y, x, x);printf ("%d*%d=%dn", x, x, y);return 0;#include <stdio. h>int main() /2-2tdouble x, y;printf("enter x:");scanf s&x);if(x!=0) y=l/x;clscy=0；)printf ("f (%. 2f) =%. lfn", x, y);return

4、0;include <stdio. h>int main() /2-22int celsius, fahr;fahr=100;celsius=5*(fahr-32)/9;printf czfahr-%d, celsius-%dn，z, fahr, celsius);return 0;#include <stdio. h>int maino /2-2-3double money, rate, x=1.0;int i,year;printf ("enter money, year and rate:z，);scanf("%1f %d %1&mon

5、ey, &year, arate);for (i=l;i<=ycar;i+)x二x*(l+rate);printf (，/intrest=% 2fnz，, money*x-money);return 0;include <stdio. h>#include<math. h>int main () /2-2-4double x, y;printf (''enter x");scanf_s(”if", &x);if(x<0. 0)y=pow(x+l, 2)+2*x+l/x;el sey=sqrt (x);pri

6、ntf ("f (%. 2f) =%. 2fn", x, y);return 0;#include <stdio. h>#include<math. h>int main () /2-2-5double x, y;printf("emer x:"); scanf_s(”if", &x);if(x=10)y=l/x;elsey=x;printf (/?f (%. 2f) =%. lfn", x, y); return 0;#include <stdio. h>int main() /226in

7、t x, y;printf(''enter numl:"); scanf_s("%d", &x);printf("enter num2:"); scanf s ("%d： &y);printf ("%d+%d=%dn", x, y, x+y); printf("%d-%d=%dn", x, y, x-y); printf("%d*%d=%dn", x, y, x*y); printf ("%d/%d二dn", x, y, x

8、/y); printf (/z%d%d=%dn，/, x, y, x%y); return 0;include <stdio. h>int main () /2-3tint i,sum=0;for(i=l;i<=100;i+) sum=sum+i;)printf("sum二%sum);return 0;include <stdio. h>int niciino /2-32int i, m, s=0;printf("enter m:"); scanf ("%d： &m);for(i=m;i<=100;i+)s二s

9、+i;printf("sum二%dn", s);return 0;#inelude <stdio. h>int main() /2-33int i, m, n;double s二0.0;printf ("enter m:”)； scanf ("%d", &ni);printf("enter n:"); scanf(”d", &n);for (i=m;i<=n;i+)s二s+l 0/i;printf("sunf%fn", s);return 0;#include

10、<stdio. h>int maino /2-3-4int i, n;double s=0. 0;printf("enter n:”)； scanf ("%d： &n);for(i=l;i<=n;i+) s=s+1.0/(2*i-l);printf (，sum=%fn，> s);return 0;include <stdio. h>int niciino /2-35int i, n;double s=l. 0, t=l. 0, sign=l. 0;printf("enter n:"); scanf ("

11、;%d", &n);for (i=l;i<n;i+)sign二一sign;t=(t+3); s=s+l/t*sign;)printf ("sunf%. 3fn", s);return 0;#include <stdio. h>int maino /2-3-6int low, uper;double fahr, celsius;printf ("enter low:，z);scanf_s("%d", &low);printf(，zenter uper:");seanf s(，/%d， &

12、;upor);printf (，zfahr celsiusn");for(fahr=low;fahr<=uper;fahr+二2)celsius二5 0/9. 0*(fahr-32. 0); printf (，z%3. of %6 lfn", fahr, celsius);return 0;include <stdio. h>int niciino /2-3-7int m, n, i;double p, sum=0.0;printf("enter m:");scanf("%d", &m);printf(&qu

13、ot;enter n:");scanf("%d", &n);p=1.0;for (i=l; i<=m; i+)p=p*i；sunfsum+p;p=l. o； for(i=l;i<=n;i+)p=p*i；sum=sum+p;printf("sum二%sum);return 0;#include <stdio. h>int maino /2-3-8int x, n, i;double p二1. 0;printf("enter x:");scanf &x);printf("enter n:&

14、quot;);scanf("%d", &n);for (i=l;i二n;i+)p=p*x;printf ("%(1的%(3次方是%. ofn", x, n, p);return 0;#inelude <stdio. h>#includenuith h>int maino /2-4-1int n, i;printf("enter n:”)； scanf ("%d： &n);for(i=0;i<=n;i+)printf (*pow(3,%d) =%. ofn", i, pow(3. 0,

15、i)； return 0;include <stdio. h>#include<math. h>int maino /2-4-4double sum二0 0, i;for(i=100;i<=1000;i+)sum+=sqrt(i);)printf ("suiif% 2fn", sum);return 0;)/ return 0;#include <stdio.h>#include<math. h>int niciino /225double x, y;printf("enter x:"); scanf

16、_s("%lf", &x);if(x=10)y二1/x;elsey=x;printf (/?f (%. 2f) =%. lfn", x, y);return 0;#inelude <stdio. h>int main() /226int x, y;printf c'enter nuinl:");scanf_s("%d", &x);printf("enter num2:");scanf s&y);printf("%d+%d=%dn", x, y, x+y

17、);printf("%d-%d=%dn", x, y, x-y);printf("%d*%d=%dn", x, y, x*y);printf ("%d/%d二dn", x, y, x/y);printf (，/%d%d=%dn，/, x, y, x%y);return 0;include <stdio. h>int main() /2 3 1int i, sum=0;for(i=l;i<=100;i+) sum二sum+i;)pri ntf (，/sum=%dn，/, sum); return 0;include &

18、lt;stdio. h>int main () /2-3-2int i, m, s=0;printf("enter m:"); scanf("%d", &m);for(i=m;i二100;i+) s=s+i;printf (，/sum=%dn，/, s); return 0;include <stdio. h>int main () /2-3-3int i, m, n;double s=0. 0;printf ("enter m:”)； scanf ("%d", &ni);printf(&q

19、uot;enter n:"); scanf(”d", &n);for (i=m;i<=n;i+)s二s+l 0/i;printf("sunf%fn", s); return 0;#include <stdio. h>int maino /2-3-4int i, n;double s=0. 0;printf("enter n:”)； scanf ("%d： &n);for(i=l;i<=n;i+) s=s+1.0/(2*i-l);printf (，sum=%fn，> s);return 0;

20、#inelude <stdio. h>int main() /2-35int i, n;double s二 1. 0, t二 1. 0, sign二 1. 0;printf("enter n:");scanf("%d", &n);for (i=l;i<n;i+)sign二-sign;t=(t+3);s=s+l/t*sign;)printf ("sum二%. 3fn", s);return 0;include <stdio. h>int niciino /2-36int low, uper;doub

21、le fahr, celsius;printf(''enter low:");scanf_s("%d”, &low);printf ("enter uper:，z);scanf_s("%d, &uper);printf (，?fahr celsiusn");for(fahr=low;fahr<=uper;fahr+=2)cclsius=5. 0/9. 0*(fahr-32.0);printf (%3. of %6. lfn", fahr, celsius);)return 0;include &l

22、t;stdio. h>int niciino /2-3-7int m, n, i;double p, sum=0.0;printf("enter m:");scanf("%d", &m);printf("enter n:");scanf("%d", &n);p=1.0;for (i=l; i<=m; i+)p=p*i；sunfsum+p;p=l. o；for(i=l;i<=n;i+)p二p*i；sum=sum+p;printf (z，sum=% ofn", sum);re

23、turn 0;include <stdio. h> int maino /2-3-8int x, n» i;double p=l. 0;printf("enter x:");scanf("%d", &x);printf("enter n:");scanf("%d", &n);for(i=l;i<=n;i+)p=p*x；printf ("%(1的%(1 次方是%. ofn", x, n, p);return 0;include <stdio. h&

24、gt;#include<math. h>int maino /2-4-1int n, i;printf("enter n:");scanf(”d", &n);for (i=0;i <=n;i+)printf (*pow(3,%d) =%. ofn", i, pow(3. 0, i)；return 0;include <stdio. h>#include<math. h>int maino /2-4-4double sum二0 0, i;for(i=100;i<=1000;i+)sum+=sqrt(i

25、);)printf ("suiif% 2fn", sum);return 0;#include<stdio. h> #include<math. h> int maino /3tdouble b, c, d;printf(，zenter a, b, c: ”)；scanf&a, &b, &c);d=b*b-4*a*c;i f (a=0)if (b=0)辻(c=0)printfc系數(shù)均為,方程無意義! n)；el se printf ("a、b為,c不為，方程不成立! n");elseprintf(*x=%.

26、 2fn", c/b);elseif(d>=0) printf("xl=%. 2n", (-b+sqrt(d)/(2*a);printf(*xl=%. 2fn", (-b-sqrt(d)/(2*a);elseprintf("xl=%. 2f+%. 2fin", -b/(2*a), sqrt(d)/(2*a); printf("xl=%. 2f-%. 2fin", -b/(2*a), sqrt(d)/(2*a);return 0;#includestdio. h>int main() /32int x,

27、y;printf(''enter x: ”)；scanf("%d", &x);if(x<0)y=-l;else if(x=0)y=0;elsey=i;printf ("sign (%d) =%dn，> x, y);return 0;#include<stdio. h>int main () /3-3int letter=o,blank=o, digit=o, other=0, i;char ch;printf("input 10 characters: ”)；for (i=0;i10;i+)ch=getch

28、ar ();if(ch>= a' &&ch<=* z | | ch>= a' &&ch二'z')letter+;else if (ch= t | ch二二'rf ) blank+;else if (ch='9'&&ch>='o')digit+;elseother+;printf (/zletter=%d, blank二d, digit二d, other=%dn： letter, blank, digit, other); return 0;#inclu

29、de<stdio. h>int main () /3-4char grade;printf(，?tnput grade: ”); gradc=getchar();switch(grcide) case ' a':;case 'a' :prin tf("%c 對應(yīng)的百分制成績區(qū)間是"100n", grade) ; break;case ' b':;case ' b' :printf c%c對應(yīng)的百分制成績區(qū)間是、90n", grade) ;break; case ' c ：

30、；case ' c* :printf ("%c對應(yīng)的百分制成績區(qū)間是79n", grade) ;break; case ' d ：；case ' d' :printf c%c對應(yīng)的百分制成績區(qū)間是69n", grade);break; case ' e ：；case ' e' :printf c%c對應(yīng)的百分制成績區(qū)間是59，grade);break; default:printf(，z數(shù)據(jù)輸入錯(cuò)謀n)；return 0;#include<stdio. h>int main () /35int c

31、hoice, count;for (count=0;count<5;count+) printf clapplcn，z); printf("丨 2pearn"); printf (z/ 3orangenz/); printf (grape、n"); printf (，?0exi tn/?); printf("enter your choice:"); scanf("%d", &choicc);switch (choice) case 0: return 0;case 1:printf("price i

32、s %2fr/： 30);break; case 2:printf(vprice is %2frf： 2.5);break;case 3:printf ("price is % 2fn，z, 41 );break;case 4:printf ("price is %. 2fr)，z, 10. 2) ;break; defaul t:printf ("price is %0. 0);return 0;#include<stdio. h>int maino /3-6int i;double grade;for (i=0;i<5;i+) printf(

33、，?emer grade: ”)；scanf("%lf", &gradc);辻(grcide<60. 0)printf (，eailn，/);el seprintf("passn");)return 0;#include<stdio. h>#include<math. h>int maino /3-7double a, b, c, s;printf(，zenter 3 sides of the triangle: “)；scanf ("%1 f %lf %lf",&a,&b, &a

34、mp;c);i f(a+b>c&&a+c>b&&b+c>a)s二(a+b+c)/2;printf("area二. 2f; perimeter二. 2frt, sqrt(s*(s-a)*(s-b)*(sc), a+b+c); elseprintf ("these sides do not correspond to a valid trianglenz，); return 0;#include<stdio. h>int main () /38double salary, rate;printf(，?enter th

35、e salary: ”)；scanf&salary);if(salary<=850)rate二0 0;else 辻(salary<=1350. 0)rate=0.05;else if(salary<=2850. 0)rate=0. 1;else i f(salary<=5850. 0)rate=0 15;elserate二0. 2;printf (z，tax=%. 2fn，z, rate* (salary-850);return 0; #include<stdio. h> int maino /3-9int i, n, grade, a=0, b=0

36、, c=0, d=0, e=0; printf("enter n: ”)； scanf &n);for (i=0;in;i+)printf (''enter grade %d: ”，i+1); scanf (“%d： &grade);switch(grade/10) case 9:case 10:a+;break;case 8:b+;brecik;case 7:c+;break;case 6:d+;break;case 5:case 4:ccise 3:case 2:case 1:case 0:e»+;break;printf("t

37、henumber of a(90、100):%drt, a);printf(，zthe numbor of b(8089):%dnz b);printf("the number of c(70"79):%dn c);printf c'thc number of d(6069):%dnsd);printf ("the number of e(059) :%dn，z,e);return 0; #include<stdio. h> int maino /3-10char sign;int x, y;printf c輸入x運(yùn)算符y：");sc

38、anf (，/%d%c%d， &x, &sign, &y);if (sign=- *')printf ("%d * %d = %dn", x, y, x*y); else if (sign=，/')printf ("%d / %d = %dn", x, y, x/y); else if (sign=, )printf (z，%d mod %d = %dn", x, y, x%y); elseprintfc運(yùn)算符輸入錯(cuò)謀！ n)；return 0;實(shí)驗(yàn)4#include<stdio. h>#in

39、clude<cmath>int main() /4 1 2int flag, denominator;double s,eps, item;printf(，zlnput eps:");scanff", &eps);s=0. 0;flag=l;denominator二1;item= 1 0;whi1e(fabs(i tem)>eps) i tem=flag*1 0/denominator;s=s+item;flag=-flag;denominator=denominator+3;)printf (，s=%. 6fn", s);return

40、0;#include<stdio. h>int main() /4t-3int x, sum;suiifo;printf ("input integers/7):scanf&x);while(x>0) if(x%2!=0)suiifsum+x;scanf (，z%d，z, &x);printf (/?the sum of the odd numbers is %dr)", sum);return 0;#include<stdio. h>int main() /4 1 4int num, count;printf("in

41、put an integer:"); scanf (“%d： &nuni);count=0;donunfnum/10;count+;)while(num!=0);printf(count=%dn，count); return 0;#include<stdio. h>int niciino /4-1-5int n, x, min, i; printf (，ztnput n: ”)； scanf ("%d： &n);printf c'input numbers：z，); scanf("%d", &x);min=x;

42、for(i = l;i<n;i+) scan("%d", &x); if(x<min) min二x;)printf ("min=%dn，/, min);return 0;int niciino /4-1-6int n, s=0, c=0;printf (tnput an integer:，z); scanf ("%d： &n);dos+二n%10;n/=10;c+；)while(n);printf ("count二%d, suiif%dn", c, s); return 0;#include<stdi

43、o. h>int maino /4-1-7double a, b, c, s二0. 0;int i, n;printf("tnput n:"); scanf ("%d", &n);for (a=l. 0, b=l. 0, i二0; in; i+, c二a+b, a二b, b二c) s+=(1.0+a/b);printf (，s=%. 2fn", s);return 0;#include<stdio. h>int main()/4-1-8int a, n, i, s=0, t=0;printf(，ztnput a, n:

44、)； scanf&a, &n);for (i=0;in;i+)t=10*t+a;s+=t;)printf("s=%dn", s);return 0;#include<stdio. h>int main() /4-1-9int n, i:double h, sum=0. 0;printf("input height: ”)； scanf&h);printf(，ztnput n: ”)；scanf ("%d： &n);sum+=h;for(i=l;i<=n;i+)sum+=h;h/=2. 0;)printf(

45、"distance：% lfn", sum);printf("height二. lfn",h);return 0;#include<stdio. h>#include<math. h>int niciino /422int m, n, i, j, st, c=0;printf (，ztnput m: ”)；scanf&m);if(m=l)m+;printf("tnput n: ”)；scanf ("%d", &n);for(i=m;i二n;i+)st=sqrt(double)i);fo

46、r(j=2;j<=st;j+)if(!(i%j)break;if (j>st) printf(*%d ", i);c+；if(! (c%6)printf("n");return 0;#include<stdio. h>int maino /4-2-3int money, fl, f2, f5, count二0;printf(，zlnput money: ”)；seanf(&m()ney);for(fl=l:fl<=money-7;f1+)for(f2=l;f2<=moncy-6;f2+)for(f5=l;f5二money

47、-3;f5+)if(fl+2*f2+5*f5=money)count+;“intf (，/count=%dn，/, count);for(fl=l;fl<=moncy-7;fl+)for(f2=l;f2<=money-6;f2+)for(f5=i;f5<=money-3;f5+)if (f1+2*f2+5*f5=money)printfcfen5: %d fen2: %d fenl: %dn", f5,2, fl);return 0;#include<stdio. h>int main() /4 2 4int m, n, k, a, b, c, imp;

48、printf ("input m: “)；scanf&m);printf(，ztnput n: ”)；scanf("%d", &n);f or(k=m;k<=n;k+)tmp=k;a=tmp%10;tmp/=10;b=tmp%10;tmp/=10;c=tmp;if (a*a*a+b*b*b+c*c*c=k)printf ("%dl (%d*%d*%d+%d*%d*%d+%d*%d*%d=%d) n", k, c, c, c, b, b, b, a, a, a, k);return 0:#include<stdio.

49、h>int main() /4 2 5int i, j, s;for(i=l;i<=200;i+)s=l;for(j=2;j<=i/2;j+)if(i%j=o)s=s+j;if(s=i) printf (/，%d=r，, i);for(j=2;j<=i/2;j+)if(i%j=o)printf ("+%d", j);printf("n");)return 0;#include<stdio. h>/5-2int sign(int x)if(x>0)return 1;if (x=0)return 0;return -

50、1;int main() int x;printf("enter x:");scanf&x);printf("sign(%d)=%dn", x, sign(x);return 0;#includestdio. h>/5-3int even(int x) return (x%2=0);int niaino int x, s=0;printf(，?tnput integers: ”)；scanf("%d", &x);while(x>0)if('even(x)s+=x;scanf(”d",&am

51、p;x);)printf c'thc sum of the odd iss);return 0;#includestdio. h>/5-4#include<math. h>double distance (double xl,double yl, double x2, double y2)return sqrt (xl-x2)* (xl-x2) + (yl-y2)*(yl-y2);int main() double xl, yl, x2, y2;printf("input (xl, yl):");scanf&xl, &yl);pri

52、ntf("input (x2, y2):");scanf ("%lf%lf",&x2,&y2);printf (vdistance=%. 2fn，z, distance(xl, yl, x2, y2);return 0;#includestdio h>/5-5#include<math h>int prime(int m)int k, sqrtm=sqrt(double)m);for (k二2;k<=sqrtm;k+)if(m%k=0)return 0;return 1;int maino int m, n, c=

53、0, s=0, k;printf (，ztnput m: ”)；scanf&m);printf(，zinput n:");scanf(”d", &n);for(k=(m=l?2:m) ;k<=n;k+)if(prime(k)c+；s+=k;)printf (，/count=%d, sum=%dn", c, s);return 0;#include<stdio. h>/56int countdigit (int number, int digit)int c=0;i f (number<0)numbcr=-numbcr;do

54、if(number%10=digit)c+;number/=10;while(number);return c;int main() int n;printfc'enter an integer:):scanf&n);printf(number of digit 2: %dn， countdigit(n,2); return 0;#include<stdio. h>/5-7int is (int n)int s=0, x, m=n;do x=m%10;s+二x*x*x;m/=10;while(m);if(s=n)return 1;return 0;int niain

55、o int m, n, i;printf("input m:“)；scanf("%d", &m);printf (，zinput n:");scanf&n);for(i=m;i<=n;i+) if(is(i) printf ("%dn", i);return 0;#include<stdio. h>/5-8double fact(int n);int main(void) int i;double sum=0. 0;/*'；：要初始化為*/ for(i=l; i<=10; i+)/*上界

56、是*/ sum=sum+fact(i);printf("1!+2!+. +10!=%fn", sum);return 0:)double fact(int n) int i:double result=l. 0;for(i=l;i<=n;i+)result=resul t*i:/*resul t'|*累積n!*/ return result;實(shí)驗(yàn)7#include<stdio. h>int maino /7-2-4int a6 6, n, i, j, flag=l;printf(/ztnput n:");scanf(”%d",

57、&n);printf("input array:nw):for(i=0;i<n;i+) for(j=0;j<n;j+) scanf&a訂j);for(j=0;j<n-l;j+) for(i=j+l;i<n;i+) if(aij)flag=0;break;if(flag=o)break;)if (fla薩=0)printf("non");elseprintf("yesn");return 0;#include<stdio. h>int main()/7-2-6int a6 6, n, i, j,

58、 row, col;printf("tnput n:");scanf ("%d", &n);printf (''input arrciy: n，z);for(i=0;i<n;i+) /* 輸入矩陣*/for(j=0;j<n;j+)scanf("%d",&ai j);for(i=0;i<n;i+)/* 對知 i 陣的每一行 */row=i;col=0;for(j=0; j<n; j+)/*找當(dāng)前行的最大值元素arow col*/if(aij>arowcol) col=j;)f

59、or (j二0; j<n; j+) /*檢測胡row col 肚否為第col列的最小元素*/ if(ajcol<arowcol)break;if (j>=n) /找到鞍點(diǎn)元素 a row colprintf("a%d%d=%dn", row, col,arowcol);break;i f (i >=n) /*所冇行都檢測過沒冇找到鞍點(diǎn)*/print/f ("n0n");return 0;#includestdio. h>int main() /7-32char c, s80;int i, index=-l:printf (&

60、#39;'input a character:z，);c=getchar ();getchar ();printf(''input a string:"); gets(s);i=0;while(si !=' 0') if(si=c)index"i+；)if(index>-l)printf (z，indox=%dn，/, index); elseprintf(not foundn");return 0;)#include<stdio. h>int niciino /7-33char s80;int i,upcase=0, count=0;printf("tnput a string:"); gets (s);i 二0;while(si !=' 0') if(si>= a* &&si<= z*) upcase+;switch(si)case ' a':case ' e* :case ' t':case ' o':case ' u* :count+;)i+；)i f (upcase)c