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  1. #include <iostream>
  2.  
  3. using namespace std;
  4.  
  5. string toString(int x){
  6.     string s;
  7.     s += (char)(x/10%10 + '0');
  8.     s += (char)(x%10 + '0');
  9.     return s;
  10. }
  11.  
  12. void inc(int &h, int &m) {
  13.     m++;
  14.     if (m == 60) {
  15.         ++h;
  16.         m = 0;
  17.         if (h == 24) {
  18.             h = 0;
  19.         }
  20.     }
  21. }
  22.  
  23.  
  24. int main()
  25. {
  26.     string s;
  27.     int a;
  28.     cin >> s >> a;
  29.     int h = (s[0]-'0') * 10 + s[1]-'0';
  30.     int m = (s[3]-'0') * 10 + s[4]-'0';
  31.  
  32.     for (int i = 1; i <= a; ++i) {
  33.         inc(h, m);
  34.     }
  35.  
  36.     cout << toString(h) << ":" << toString(m);
  37. }
Success #stdin #stdout 0.01s 5312KB
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./:41
https://ideone.com/K09lfv
language:
C++ (gcc 8.3)
created:
3 days ago
visibility:
public

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