제출 #727418

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
727418	2023-04-20 15:49:18	model_code	Tourism (JOI23_tourism)	C++17	100 / 100	1807 ms	27108 KiB

tourism

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#include <iostream>
#include <vector>
#include <queue>
#include <map>
struct binary_indexed_tree{
  int N;
  std::vector<int> BIT;
  binary_indexed_tree(int N): N(N), BIT(N + 1, 0){
  }
  void add(int i, int x){
    i++;
    while (i <= N){
      BIT[i] += x;
      i += i & -i;
    }
  }
  int sum(int i){
    int ans = 0;
    while (i > 0){
      ans += BIT[i];
      i -= i & -i;
    }
    return ans;
  }
  int sum(int L, int R){
    return sum(R) - sum(L);
  }
};
int main(){
  int N, M, Q;
 
 
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