제출 #1075548

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1075548		oscar1f	Trains (BOI24_trains)	C++17	21 / 100	2095 ms	7376 KiB

Main

#include<bits/stdc++.h>
using namespace std;

#define int long long

const int TAILLE_MAX=100*1000+5,LIMITE=400,MODU=1000*1000*1000+7;
int nbVal;
vector<int> cumu[LIMITE][LIMITE];
int duree[TAILLE_MAX],nbTraj[TAILLE_MAX];
int rep[TAILLE_MAX];


signed main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    cin>>nbVal;
    for (int i=1;i<=nbVal;i++) {
        cin>>duree[i]>>nbTraj[i];
        if (duree[i]==0) {
            duree[i]=MODU;
        }
    }
    for (int i=nbVal;i>=1;i--) {
        for (int j=i;j<=min(nbVal,i+duree[i]*nbTraj[i]);j+=duree[i]) {
            rep[i]+=rep[j];
            rep[i]%=MODU;
        }
        rep[i]++;
        rep[i]%=MODU;
        //cout<<i<<" : "<<rep[i]<<endl;
    }
    cout<<rep[1]<<endl;
    return 0;
}
 

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