1、C程序答案以下程序如果是在Turbo C2.0運行，請去掉“ voic。”1. #include<stdio.h>void fun(int &a,int &b)(int t;if(a>b)t=a;a=b;b=t;void mai n()(int a,b,c,d;prin tf("Please In put 3 n umbers:' n );scanf( % d%d%d，&a,&b,&c);fun( a,b);fun( a,c);fun (b,c);prin tf("The result is:n")

2、;printf( n%d %d %d” ,a,b,c);2. #i nclude <stdio.h> mai n()(char cl=C,c2=h,c3='i',c4=' n',c5='a'printf( n 原字符串是:%c%c%c%c%cn",cl,c2,c3,c4,c5); cl+=4; c2+=4;c3+=4;c4+=4;c5+=4;printf("密碼是:% c%c%c%c%cn",cl,c2,c3,c4,c5);3. #i nclude <stdio.h> void mai n()

3、(char ch;printf (” 請輸入一個字符n” ； scanf("%c",&ch);if (ch>='A'&&chv=Z)ch=ch+32;else if(ch>='a'&&chv='z') ch=ch-32; printf(H%cn n,ch);4. #i nclude<stdio.h>void mai n()(float a,b,t; pri ntf( “Please In put 2 n umbers:' n"); sea nf(

4、"%f%f', &a,&b);if(a>b)t=a;a=b;b=t;prin tf("%fn%f',a,b);5. #in clude<stdio.h>void mai n()int n,a,b,c,s;pr in tf("Please In put a n umber:' n"); sea nf("%d",&n);a=n%10;b=n/100;c=n/10-b*10;s=a+b+c;printf( nThe result is:nM);printf( n%dnn,s)

5、;6. #in clude<stdio.h>#in clude<math.h>float fun( float x)(float y;if(0>=x)return (y=sqrt(l_x);else if(x<=l)return (1-x);else return (y=pow(l-x),2);float main()float x,y;printf (”請輸入X的值：nn); sca nf("%f', &x);y=fu n( x); printf( n%fn,y);7. #in clude<stdio.h> float

6、 fun( float x)foaf y-ir(XAO)refurn (yulxxe-se refurn (y"2*x*x2=foaf maino宀foaf XMpzi.nffu B> X H±呼 rT scanr(=&f"cx yAun(x= prin=t(/fnw 9°琴 c-udecssiphv void maino 宀 infgj-mj-xr ror(gli-一込A-20 込 j+)(for(mli-rmA-33m+)(fodxli-wxA-1 oqxli-xj+3)ir(gj+mj+xjHH100)QOQO(gr5+mr3+xj、

7、3HH100)QOQO(gjvH_)QOQO(mjvll)QOQO(xjvH_) prin=t1 1 &d>n、k皚 &d H云 n-gjm-xj=0- #inc-ude Assiphvinf maino(inp-LKfor(z二 AU4 二+)(rowll二今4 二+)for(k"r kcu4- k+)iaHj)QO£Hk)QOQO0Hk)宀prin=t(=&d &d &dvrL j- k10. #i nclude <stdio.h>#i nclude <stdlib.h>#in elude <s

8、tri ng.h>#in elude <math.h>int main (void)int n = 0;printf (”請輸入一個正整數n” ；scanf("%d H, &n);if(n <0) printf (”輸入為負整數，取絕對值求解n” ；n = -n;)if(n = 0 II n = 1 )printf("O和1不屬于質數問題討論范圍。n”);return 0;if(n =2ll n= 3)printf( n%d 是質數)。nn, n);return 0;for(int i = 2; i<sqrt(n); i+)(if (

9、n % i) eon ti nue;printf( H%d 不是質數。n” ,n);return 0;printf( H%d 是質數。nn, n);return 0;11. #in elude <stdio.h> void mai n()int n=0;prin tf("i nput a stri ng:n"); while(getchar() !='n') n+; printf("The result is:n n); printf( n%dn n,n);12. #i nclude<stdio.h>void mai n()

10、int a10,b10,i;prin tf("Please In put 10 numbers:"); for(i=0;i< 10;i+)sca nf(H%dH,ai);for(i=5;i< 10;i+)bi=a10-i;for(i=0;i< 10;i+)printf(H%d%dn n,ai,bi);13. #i nclude <stdio.h>#defi ne N 10void mai n()(int aN,t,i;printf( n 請輸入 10 個數：nn);for( i=0; i<N; i+ )scanf("%d n,&

11、amp;ai);printf ("交換前：n” ；for( i=0; i<N; i+ )printf( n%-5d n,ai);for( i=0; i<N/2; i+)(t=ai;ai=aN-i-l;aN-i-l=t;printf( nn 交換后:n” ；for( i=0; i<N; i+ )printf( H%-5d n,ai);14. #i nclude <stdio.h>void mai n()int i,j,t ； float a10;prin tf("Please In put the stude nt's scores:&q

12、uot;); for(i=0;i< 10;i+)sca nf("%f", &ai);for(j=0;j<9;j+)for(i=0;i<9J;i+)if(ai<ai+l)(t=ai;ai=ai+l;ai+l=t;)for(i=0;i< 10;i+) printf( H%fn n,ai);15. #in clude<stdio.h>#defi ne N 3typedef struct (char id8;int score 1;int score2;int score3;int sum; Stude nt;Student stu

13、dents N;Student input()(Stude nt stude nt;printf( nt 學 號:”)seanf( %'s”，&student.id);pri ntf("tscorel:");sca nf("%d", &stude nt.scorel);pri ntf("tscore2:");sca nf("%d", &stude nt.score2);pri ntf("tscore3:");sca nf("%d", &

14、stude nt.score3);stude nt, sum = stude nt, score 1 +stude nt. score2+s tude nt. score3;retur n stude nt;int mai n()(int i=0,maxScore=0,i ndex=0;for(i=0;i<N ;i+)(printf (”輸入第 d個學生的信息：n” ,i+l);stude nts i = in put();if(stude ntsi.sum>maxScore)maxScore = stude ntsi.sum; in dex = i;printf("n 總分最高的是:%sn",studentsindex.id);printf("他的總分是:%d",maxScore);return 0;)16. #i nclude<s