#include <stdio.h> int main() { int n; for (;;) { scanf("%d",&n); if(!n) break; if(n==3) printf("1/n"); else if(n==4||n==5) printf("2/n"); else printf("%d/n",n/2); } return 0; }
http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemId=1830
#include <stdio.h> int main() { int n; for (;;) { scanf("%d",&n); if(!n) break; if(n==3) printf("1/n"); else if(n==4||n==5) printf("2/n"); else printf("%d/n",n/2); } return 0; }
http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemId=1830