Submission #1201873

#	Time	Username	Problem	Language	Result	Execution time	Memory
1201873		KK_1729	Pyramids (IOI24_pyramids)	C++20	100 / 100	43 ms	5044 KiB

pyramids

#include "pyramids.h"
#include <bits/stdc++.h>
using namespace std;
vector<long long> a;
vector<long long> b;
void init(std::vector<int> A, std::vector<int> B) {
  
  int n = A.size();
  a.resize(n);
  b.resize(n);
  a[0] = A[0];
  b[0] = B[0];
  for (int i = 1; i < n; i++){
    a[i] = a[i-1]+A[i];
    b[i] = b[i-1]+B[i];
  }
}

bool can_transform(int L, int R, int X, int Y) {
  long long sum1 = a[R];
  if (L) sum1 -= a[L-1];
  
  long long sum2 = b[Y];

  if (X) sum2 -= b[X-1];
  return (sum1 == sum2);
}

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