Submission #1261534

#	Time	Username	Problem	Language	Result	Execution time	Memory
1261534		software1146	Pyramids (IOI24_pyramids)	C++17	100 / 100	43 ms	5040 KiB

pyramids

#include "pyramids.h"
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

vector<ll> prefixA, prefixB;

void init(vector<int> A, vector<int> B) {
    ll N = A.size();
    prefixA.resize(N + 1, 0);
    prefixB.resize(N + 1, 0);

    for (ll i = 0; i < N; ++i) {
        prefixA[i + 1] = prefixA[i] + A[i];
        prefixB[i + 1] = prefixB[i] + B[i];
    }
}

bool can_transform(int L, int R, int X, int Y) {
    ll sumA = (prefixA[R + 1] - prefixA[L]);
    ll sumB = (prefixB[Y + 1] - prefixB[X]);

    if (sumA == sumB) {
        return true;
    }

    else {
        return false;
    }
}

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