Submission #766442

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
766442	2023-06-25 16:18:43	a_aguilo	Nuclearia (CEOI15_nuclearia)	C++14	0 / 100	1077 ms	280332 KiB

nuclearia

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#include<bits/stdc++.h>
using namespace std;
int N, Q, W, H;
vector<vector<long long int>> plants, preSum;
void print(vector<vector<long long int>>& V){
  for(int i = 0; i < W; ++i){
    for(int j = 0; j < H; ++j){
      cout << V[i][j] << " ";
    }
    cout << endl;
  }
}
void calcPreSum(){
  preSum = vector<vector<long long int>>(W, vector<long long int>(H, 0));
  for(int i = 0; i < W; ++i){
    preSum[i][0] = plants[i][0];
    if(i) preSum[i][0] += preSum[i-1][0];
  }
  for(int i = 0; i < H; ++i){
    preSum[0][i] = plants[0][i];
    if(i) preSum[0][i] += preSum[0][i-1];
  }
  for(int i = 1; i < W; ++i){
    for(int j = 1; j < H; ++j){
      preSum[i][j] = plants[i][j] + preSum[i-1][j] + preSum[i][j-1] - preSum[i-1][j-1];
    }
 
 
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