将十六进制转换成八进制，为什么我先把十六进制转换成十进制，在转换成八进制一直给我显示提交出现错误答案，望大佬教教我#include<iostream>using namespace std;long long a[100000], b[10], c[10][100000];int main() { string str; long long n, x , y; long long sum, count, reminder; //要改成long long,因为数据可能过大 cin >> n; for (int j = 0; j < n; j++) { cin >> str; sum = 0; count = 1; x = 0; y = 0; for (int i = str.length() - 1; i >= 0; i--) { if (str[i] >= '0' && str[i] <= '9') { sum += count * (str[i] - '0'); count *= 16; } else if (str[i] >= 'A' && str[i] <= 'F') { sum += count * (str[i] - 'A' + 10); count *= 16; } } if (sum != 0) { while (sum != 0) { reminder = sum % 8; sum = sum / 8; a[x++] = reminder; } for (x = x - 1; x >= 0; x--) { c[j][y++] = a[x]; } } else { c[j][y++] = 0; } b[j] = y - 1; } for (int j = 0; j < n; j++) { for (int i = 0; i <= b[j]; i++) { cout << c[j][i]; } cout << endl; } return 0;}