# include <stdio.h> int main() { printf("Hello,world!") ; return 0; }
#include<stdio.h> #include<stdlib.h> int main() { int a; printf("请输入一个整数:"); scanf("%d",&a); if(a%2==0) printf("%d为偶数!",a); else printf("%d为奇数!"); system("pause") ; return 0; }
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#include<stdio.h> int main() { printf("201983270467"); return 0; }
#include<stdio.h> int product(int,int); int main(void) { int x,y,s; scanf("%d %d",&x,&y); s=product(x,y); printf("The mul is :%d",s); return 0; } int product(int a,int b) { int mul; mul = a*b; return mul; }
# include <stdio.h> int main() { int a=5,b=7,c=100,d,e,f; d=a/b*c; e=a*c/b; f=c/b*a; printf("d=%d,e=%d,f=%d\n",d,e,f); return 0; }
# include <stdio.h> int main() { int a=5,b=8; printf("a++=%d\n",a++) ; printf("a=%d\n",a); printf("++b=%d\n",++b); printf("b=%d\n",b); return 0; }
# include <stdio.h> int main() { char ch; printf("输入一个字符:\n"); scanf("%c",&ch); if(ch>=65&&ch<=90) ch+=32; printf("%c\n",ch); return 0; }
# include <stdio.h> int main () { int a=5,b=8,c=8; printf("%d,%d,%d,%d\n",a==b&&a==c,a!=b&&a!=c,a>=b&&a>=c,a<=b&&a<=c) ; printf("%d,%d\n",a<=b||a>=c,a==b||b==c); printf("%d,%d,%d\n",!(a==b),!(a>=b),!(a>=c),!(a<=b)); return 0; }
# include <stdio.h> int main() { int days; printf("输入一个整数:\n"); scanf("%d",&days); if(days>=1&&days<=5) printf("workdays,fighting\n"); else if(days==6||days==7) printf("weekend,relax~\n"); else printf("Ooops,not in 1~7\n"); return 0; }