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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. const int MOD = 1000000007;
  4.  
  5.  
  6. long long tru(long long a, long long b) {
  7.     return ((a - b) % MOD + MOD) % MOD;
  8. }
  9.  
  10. int main() {
  11.     ios::sync_with_stdio(false);
  12.     cin.tie(nullptr);
  13.  
  14.     int n, q;
  15.     cin >> n >> q;
  16.  
  17.     vector<long long> cp(n+1, 0LL);
  18.     vector<long long> lastP(n+1, 0LL);
  19.     vector<long long> money(n+1, 0LL);
  20.  
  21.     long long P = 0;
  22.  
  23.     while (q--) {
  24.         int type;
  25.         cin >> type;
  26.         if (type == 1) {
  27.             int p;
  28.             long long x;
  29.             cin >> p >> x;
  30.             money[p] = (money[p] + ((cp[p] % MOD) * tru(P, lastP[p])) % MOD) % MOD;
  31.             lastP[p] = P;
  32.             cp[p] += x; 
  33.         }
  34.         else if (type == 2) {
  35.             long long v;
  36.             cin >> v;
  37.             P = (P + (v % MOD) + MOD) % MOD;
  38.         }
  39.         else {
  40.             int p;
  41.             cin >> p;
  42.             money[p] = (money[p] + ((cp[p] % MOD) * tru(P, lastP[p])) % MOD) % MOD;
  43.             lastP[p] = P;
  44.             cout << (money[p] % MOD) << "\n";
  45.             money[p] = 0;
  46.         }
  47.     }
  48.  
  49.     return 0;
  50. }
  51.  
  52.  
  53.  
Success #stdin #stdout 0.01s 5284KB
comments (?)
stdin 
3 8
1 1 5
2 3
1 2 10
2 2
3 1
2 4
3 2
3 1
stdout 
25
60
20
https://ideone.com/8HcE33
language:
C++14 (gcc 8.3)
created:
6 days ago
visibility:
public

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