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水题不解释~~#include<stdio.h> #include<math.h> int sushu(int n) { int i; if(n==1) return 0; if(n==2) return 1; for(i=2;i<=sqrt(n);i++) if(n%i==0) return 0; if(i>sqrt(n)) return 1; } main() { int sushu(int n); long a; int d,n,temp; while(1) { temp=0; scanf("%d%d%d",&a,&d,&n); if(a==0&&d==0&&n==0) return; while(1) { if(sushu(a)) temp++; if(temp==n) { printf("%ld\n",a); break; } a=a+d; } } } Followed by: Post your reply here: |
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