Submission #69330164

Source Code Expand

// E

#include <iostream>
#include <vector>

using namespace std;

int main()
{
    long long n, q;
    cin >> n >> q;
    vector<long long> a(n);
    vector<long long> ad(n+1, 0);
    vector<long long> dad(n+1, 0);
    vector<long long> ddad(n+1, 0);
    for (long long i = 0; i < n; i++) {
        cin >> a[i];
        ad[i+1] = ad[i] + a[i];
        dad[i+1] = dad[i] + (i + 1) * a[i];
        ddad[i+1] = ddad[i] + (i + 1) * (i + 1) * a[i];
    }
    
    
    while (q--) {
        long long l, r;
        cin >> l >> r;
        cout << (-l + 1) * (r + 1) * (ad[r] - ad[l-1]) 
        + (r + l) * (dad[r] - dad[l - 1]) 
        - (ddad[r] - ddad[l - 1]) << endl;
    }
}

Submission Info

Submission Time
Task E - Sum of Subarrays
User lucky_ducky037
Language C++ 20 (gcc 12.2)
Score 475
Code Size 705 Byte
Status AC
Exec Time 483 ms
Memory 15472 KiB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 475 / 475
Status
AC × 1
AC × 16
Set Name Test Cases
Sample sample00.txt
All sample00.txt, testcase00.txt, testcase01.txt, testcase02.txt, testcase03.txt, testcase04.txt, testcase05.txt, testcase06.txt, testcase07.txt, testcase08.txt, testcase09.txt, testcase10.txt, testcase11.txt, testcase12.txt, testcase13.txt, testcase14.txt
Case Name Status Exec Time Memory
sample00.txt AC 1 ms 3444 KiB
testcase00.txt AC 1 ms 3476 KiB
testcase01.txt AC 341 ms 3668 KiB
testcase02.txt AC 374 ms 5524 KiB
testcase03.txt AC 241 ms 4924 KiB
testcase04.txt AC 213 ms 8604 KiB
testcase05.txt AC 189 ms 10988 KiB
testcase06.txt AC 102 ms 4432 KiB
testcase07.txt AC 343 ms 5692 KiB
testcase08.txt AC 482 ms 14828 KiB
testcase09.txt AC 483 ms 14832 KiB
testcase10.txt AC 477 ms 14832 KiB
testcase11.txt AC 477 ms 14840 KiB
testcase12.txt AC 476 ms 14944 KiB
testcase13.txt AC 479 ms 14828 KiB
testcase14.txt AC 414 ms 15472 KiB