Submission #23780387

Source Code Expand

#include<bits/stdc++.h>
#include<atcoder/all>
using namespace std;
using namespace atcoder;
using ll=long long;
template<class T,class U> inline bool chmin(T&x,U y){if(x>y){x=y;return true;}return false;}
template<class T,class U> inline bool chmax(T&x,U y){if(x<y){x=y;return true;}return false;}

void solve(){
    int n;
    cin >> n;
    vector<ll> a(n);
    for(auto&i:a) cin >> i;
    auto dp = vector(n+1, vector<modint1000000007>(n+1));
    auto b = vector(n+1, vector(n+1,-1));
    b[1][0] = 0;
    dp[0][0] = 1;
    ll s{};
    for(int i{};i<(n);++i){
        s+=a[i];
        for(int j{1};j<=n;++j){
            if(b[j][s%j]!=-1){
                dp[i+1][j] = dp[b[j][s%j]][j] + dp[b[j][s%j]][j-1];
            }
            b[j][s%j] = i+1;
        }
    }
    modint1000000007 ans;
    for(int j{1};j<=(n);++j){
        ans += dp[n][j];
    }
    cout << ans.val() << endl;
}

int main(){
    cin.tie(nullptr);
    ios::sync_with_stdio(false);
    solve();
}

Submission Info

Submission Time
Task E - Mod i
User Motsu_xe
Language C++ (GCC 9.2.1)
Score 500
Code Size 1009 Byte
Status AC
Exec Time 533 ms
Memory 73992 KiB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 500 / 500
Status
AC × 3
AC × 31
Set Name Test Cases
Sample example0.txt, example1.txt, example2.txt
All 000.txt, 001.txt, 002.txt, 003.txt, 004.txt, 005.txt, 006.txt, 007.txt, 008.txt, 009.txt, 010.txt, 011.txt, 012.txt, 013.txt, 014.txt, 015.txt, 016.txt, 017.txt, 018.txt, 019.txt, 020.txt, 021.txt, 022.txt, 023.txt, 024.txt, 025.txt, 026.txt, 027.txt, example0.txt, example1.txt, example2.txt
Case Name Status Exec Time Memory
000.txt AC 11 ms 3616 KiB
001.txt AC 2 ms 3580 KiB
002.txt AC 2 ms 3520 KiB
003.txt AC 505 ms 73992 KiB
004.txt AC 512 ms 73892 KiB
005.txt AC 533 ms 73636 KiB
006.txt AC 501 ms 73688 KiB
007.txt AC 110 ms 25048 KiB
008.txt AC 435 ms 64720 KiB
009.txt AC 3 ms 3920 KiB
010.txt AC 505 ms 73948 KiB
011.txt AC 495 ms 73916 KiB
012.txt AC 505 ms 73940 KiB
013.txt AC 527 ms 73816 KiB
014.txt AC 472 ms 73960 KiB
015.txt AC 449 ms 73988 KiB
016.txt AC 101 ms 25148 KiB
017.txt AC 240 ms 73808 KiB
018.txt AC 407 ms 73948 KiB
019.txt AC 2 ms 3624 KiB
020.txt AC 2 ms 3584 KiB
021.txt AC 387 ms 73956 KiB
022.txt AC 409 ms 73812 KiB
023.txt AC 382 ms 73972 KiB
024.txt AC 384 ms 73920 KiB
025.txt AC 428 ms 73832 KiB
026.txt AC 442 ms 73940 KiB
027.txt AC 368 ms 73960 KiB
example0.txt AC 2 ms 3660 KiB
example1.txt AC 2 ms 3620 KiB
example2.txt AC 3 ms 3616 KiB