//求100之内的素数。 #include<stdio.h> int main() { int i,j,n; printf("请输入一个正整数:\n"); scanf("%d",&n); printf("%d之前的素数有:\n",n); for(i=2;i<=n;i++){ for(j=2;j<i;j++) if(i%j == 0) break; if(i==j) printf("%d\t",i); } printf("\n"); }
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