Submission #527176

#	Time	Username	Problem	Language	Result	Execution time	Memory
527176		Hydroxic_Acid	Calvinball championship (CEOI15_teams)	C++17	0 / 100	1 ms	204 KiB

teams

#include <iostream>
using namespace std;
 
int N;
int arr[10005];
int memo[10005][10005];
 
int dp(int idx, int num){
    if(idx >= N) return 0;
    if(idx == N - 1) return 1;
    if(num > N) return 0;
    int summ = 0;
    for(int i = 1; i <= min(arr[idx + 1], num + 1); i++){
        if(i == num + 1) summ += dp(idx + 1, num + 1);
        else summ += dp(idx + 1, num);
        summ %= 1000007;
    }
    return summ;
}
 
int main(){
    freopen("test.txt", "r", stdin);
    cin >> N;
    for(int i = 0; i < N; i++) cin >> arr[i];
    cout << dp(0, 1);
}

Compilation message (stderr)

teams.cpp: In function 'int main()':
teams.cpp:22:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   22 |     freopen("test.txt", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 10
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 0 / 10
• Subtask 6: 0 / 10
• Subtask 7: 0 / 10
• Subtask 8: 0 / 10
• Subtask 9: 0 / 10
• Subtask 10: 0 / 10