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  1. // Online C++ compiler to run C++ program online
  2. #include <iostream>
  3. #include<bits/stdc++.h>
  4. using namespace std;
  5.  
  6. int main() {
  7.     int b, n, cb = 0;
  8.     cin >> b >> n;
  9.     vector<int> t;
  10.     vector<int> oper = {b};
  11.  
  12.     for (int i = 0; i < n; i++) {
  13.         string op;
  14.         cin >> op;
  15.         if (op == "read") {
  16.             cout << oper[cb] << endl;
  17.         } else if (op == "credit" || op == "debit") {
  18.             int x;
  19.             cin >> x;
  20.             if (op == "credit") oper[cb] += x;
  21.             else oper[cb] -= x;
  22.             t.push_back(op == "credit" ? x : -x);
  23.         }  else if (op == "rollback") {
  24.             int temp;
  25.             cin >> temp;
  26.             cb = temp - 1;
  27.             oper.resize(temp);
  28.         }
  29.         else if (op == "abort") {
  30.             int temp;
  31.             cin >> temp;
  32.             if (temp <= t.size()) {
  33.                 oper[cb] -= t[temp - 1];
  34.                 t[temp - 1] = 0;
  35.             }
  36.         }else if (op == "commit") {
  37.             oper.push_back(oper[cb]);
  38.             cb++;
  39.         }
  40.  
  41.     }
  42.     return 0;
  43. }
  44.  
Success #stdin #stdout 0s 5280KB
comments (?)
stdin
copy 
90

8

read

credit 10

debit 12

debit 8

credit 7

abort 1

commit

read
stdout
copy 
90
77
https://ideone.com/mGyN8C
problem BIT2, based on SPOJ submission 11034498 (C++ 4.3.2), 2014-02-09 15:54:15
language:
C++ (gcc 8.3)
created:
6 days ago
visibility:
public

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