제출 #223803

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
223803	2020-04-16 13:34:50	bortoz	Mountains (NOI20_mountains)	C++17	24 / 100	239 ms	12300 KiB

Mountains

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#include "bits/stdc++.h"
using namespace std;
typedef long long ll;
#define fi first
#define se second
constexpr int MAXN = 1 << 19;
int fw[MAXN];
void add(int p, int v) {
  for (p++; p < MAXN; p += p & -p) {
    fw[p] += v;
  }
}
int sum(int p) {
  int r = 0;
  for (p++; p > 0; p -= p & -p) {
    r += fw[p];
  }
  return r;
}
int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  int N;
  cin >> N;
 
 
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