蓝桥杯 十进制转十六进制

 1 #include<bits/stdc++.h>
 2 using namespace std;
 3 int main() {
 4     int n;
 5     cin >> n;
 6     vector<int> v;
 7     if (n == 0) {
 8         cout << 0 << endl;
 9         return 0;
10     }
11     while (n != 0) {
12         int t = n % 16;
13         v.push_back(t);
14         n /= 16;
15     }
16     for (int i = v.size() - 1; i >= 0; i--) {
17         if (v[i] < 10) {
18             cout << v[i];
19         } else {
20             cout << char(‘A‘ + v[i] - 10);
21         }
22     }
23     return 0; 
24 }