测试的都是对的但是WAqwq

#define _CRT_SECURE_NO_WARNINGS 1
#include <bits/stdc++.h>
using namespace std;
vector<int> c3;
void JW(int n,int i) {
    //那一位不存在
    if ((signed int)(c3.size()-1)<i) {
        if (n>=10){
            c3.push_back(n % 10);
            c3.push_back(n / 10);
        }
        else {
            c3.push_back(n);
        }
    }
    else {
        //那一位存在
        n = n + c3.at(i);
        if (n>=10) {
            c3.at(i) = n % 10;
            JW(n / 10,i+1);
        }
        else {
            c3.at(i) = n;
        }
    }
}
void PR() {
    reverse(c3.begin(), c3.end());
    vector<int>::iterator vv = c3.begin();
    while ((vv != c3.end())&& (*vv == 0)) {
        vv++;
    }
    if (vv==c3.end()) {
        printf("0");
    }
    else {
        for (vv; vv != c3.end(); vv++) {
            printf("%d", *vv);
        }
    }
}
void XC(vector<int>* G,vector<int>* D) {
    //倒叙遍历位数低的
    for (vector<int>::iterator c1 = D->begin(); c1 != D->end(); c1++) {
        //遍历高位的每一位
        for (vector<int>::iterator c2 = G->begin(); c2 != G->end(); c2++) {
            int number = (*c1) * (*c2);
            JW(number, (c1-(D->begin()))+(c2-(G->begin())));
        }
    }
}
int main() {
    vector<int> c1;
    vector<int> c2;
    char c;
    //读取第一个数存入容器
    while ((c = getchar()) != '\n' && c != EOF) {
        c1.push_back(c-'0');
    }
    //读取第二个数存入容器
    while ((c = getchar()) != '\n' && c != EOF) {
        c2.push_back(c-'0');
    }
    reverse(c1.begin(), c1.end());
    reverse(c2.begin(), c2.end());
    //判断哪个数更大
    c1.size() > c2.size() ? XC(&c1, &c2) : XC(&c2, &c1);
    PR();
}

为什么一个测试点过不了 自己测试的没问题