c - for循环一定有错误

Question

For some reason this cycle doesn't stop, without the else it doesn't even print the first line and I dont't know how to fix it

    for(int i = 0; prime <= sqrt(rest); ++i) {
        printf("%d", i);
        if (primes[i] == 1) {
            prime = primes[i];
            printf("%d", prime);
            while (rest % prime == 0) {
                rest = rest / prime;
                rep++;
            }
            if (rep == 1) {
                printf("%d", i);
                print++;
            } else if (rep > 1) {
                printf("%d^%d", prime, rep);
                print++;
            }
            if (rest != 1 && print != 0) {
                printf(" x ");
            } else if (print != 0) {
                printf("\n");
            }
            rep = 0;
            print = 0;
        }else{
            printf("WTF\n%d\n", i);
            i++;
        }
    }
    if (rest > 1) {
        printf("%lld\n", rest);
    } else{
        printf("WTF\n");
        break;
    }
}

Answer 1

你永远不会改变素数的值，这就是你的条件被设置为停止的原因，所以如果它永远不会改变，它就永远不会停止。也许你的意思是在 for 循环开始时是 prime 而不是 i ？