Submission #1166219

#	Time	Username	Problem	Language	Result	Execution time	Memory
1166219		sqrteipi	Pyramids (IOI24_pyramids)	C++20	100 / 100	61 ms	5052 KiB

pyramids

#include <bits/stdc++.h>
#include "pyramids.h"
using namespace std;

typedef long long ll;
ll prea[100005], preb[100005];
void init(vector<int> a, vector<int> b) {
  int n = a.size();
  for (int i = 0; i < n; i++) {
    prea[i + 1] = prea[i] + a[i];
    preb[i + 1] = preb[i] + b[i];
  }
}

bool can_transform(int l, int r, int x, int y) {
  return (prea[r + 1] - prea[l]) == (preb[y + 1] - preb[x]);
}

• Subtask 0: 0 / 0
• Subtask 1: 10 / 10
• Subtask 2: 40 / 40
• Subtask 3: 20 / 20
• Subtask 4: 30 / 30