求某數之內最大質數
#include <stdio.h>int main(int argc, char *argv[]) {
int n;
int isPrime = 1;
printf("Enter a number:\n");
scanf("%d",&n);
for(int i = n;i>0;i--)
{
isPrime = 1;
for(int j = 2; j<i;j++)
if (i%j == 0 ) {
isPrime = 0;
continue;
}
if(isPrime == 1)
{
printf("%d",i);
break;
}
}
return 0;
}
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