Submission #480096

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
480096	2021-10-14 14:54:38	1bin	조개 줍기 (KOI17_shell)	C++14	100 / 100	1525 ms	92572 KiB

shell

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#include <bits/stdc++.h>
using namespace std;
#define all(v) v.begin(), v.end()
typedef long long ll;
const int NMAX = 1505;
int n, k, base = 1, x, y, l, r;
ll  dp[NMAX][NMAX], a[NMAX][NMAX], p ,ans;
vector<ll> seg[NMAX];
char c;
void update(int y, int idx, ll v) {
  idx += base;
  while (idx) {
    seg[y][idx] += v;
    idx /= 2;
  }
  return;
}
ll find(int y, int l, int r) {
  ll ret = dp[y][r];
  l += base; r += base;
  while (l <= r) {
    if (l & 1) ret += seg[y][l++];
    if (!(r & 1)) ret += seg[y][r--];
    l /= 2; r /= 2;
  }
  return ret;
 
 
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• Subtask 1: 12 / 12
• Subtask 2: 34 / 34
• Subtask 3: 54 / 54