Submission #462446

#	Time	Username	Problem	Language	Result	Execution time	Memory
462446		JovanB	Calvinball championship (CEOI15_teams)	C++17	100 / 100	368 ms	508 KiB

teams

#include <bits/stdc++.h>
using namespace std;
 
typedef long long ll;
typedef long double ld;
 
const int MOD = 1000007;
 
int n;
int niz[100005];
int tren[100005];
int dp[10005];
int dpp[10005];
 
int add(int a, int b){
    return (a+b)%MOD;
}
 
int mul(int a, int b){
    return ((ll)a*b)%MOD;
}
 
int main(){
    ios_base::sync_with_stdio(false);
    cout.precision(10);
    cout<<fixed;
 
    cin >> n;
    for(int i=1; i<=n; i++){
        cin >> niz[i];
        tren[i] = max(niz[i], tren[i-1]);
    }
    for(int i=1; i<=n; i++){
        dpp[i] = 1;
    }
    int res = 0;
    for(int i=n; i>=1; i--){
        for(int j=1; j<=n; j++){
            dp[j] = add(mul(j, dpp[j]), dpp[j+1]);
        }
        res = add(res, mul(niz[i]-1, dpp[tren[i-1]]));
        for(int j=1; j<=n; j++){
            dpp[j] = dp[j];
        }
    }
    cout << res+1 << "\n";
    return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 10 / 10
• Subtask 5: 10 / 10
• Subtask 6: 10 / 10
• Subtask 7: 10 / 10
• Subtask 8: 10 / 10
• Subtask 9: 10 / 10
• Subtask 10: 10 / 10