Submission #995323

#	Time	Username	Problem	Language	Result	Execution time	Memory
995323		PagodePaiva	Trains (BOI24_trains)	C++17	0 / 100	5 ms	1116 KiB

Main

#include<bits/stdc++.h>
#pragma GCC optimize("O3")

using namespace std;

const int N = 1e5+10;
const int B = 500;
int n;
int dp[N], d[N], x[N];
int pref[N];

int main(){
    ios::sync_with_stdio(false); cin.tie(0);
    cin >> n;
    for(int i = 1;i <= n;i++){
        cin >> d[i] >> x[i];
    }
    for(int i = 1;i <= n;i++){
        dp[i] = 1;
    }
    for(int i = n;i >= 1;i--){
        dp[i] = pref[min(n, i+x[i])];
        pref[i] = pref[i+1] + dp[i];
    }
    cout << dp[1] << '\n';
    return 0;
}

• Subtask 1: 0 / 8
• Subtask 2: 0 / 13
• Subtask 3: 0 / 16
• Subtask 4: 0 / 34
• Subtask 5: 0 / 29