Submission #527318

#	Time	Username	Problem	Language	Result	Execution time	Memory
527318		squiddy	Calvinball championship (CEOI15_teams)	C++14	70 / 100	56 ms	65540 KiB

teams

#include <bits/stdc++.h>

using namespace std;
#define FOR(v, s, e) for (int v = s; v < e; v++)
#define FOR_REV(v, s, e) for (int v = e - 1; v >= s; v--)
#define int long long

#define MOD 1000007
int n, ans, cmax = 1;
vector<vector<int>> dp;
int cval;

int32_t main() {
	cin >> n;
	dp.resize(n);
	dp[0].resize(n);
	FOR(i, 0, n) {
		dp[0][i] = 1;
	}
	FOR(i, 1, n) {
		dp[i].resize(n - i);
		FOR(j, 0, n - i) {
			dp[i][j] = ((j + 1) * dp[i - 1][j] + dp[i - 1][j + 1]) % MOD;
		}
	}
	FOR_REV(i, 0, n) {
		cin >> cval;
		//cout << cmax << ' ';
		ans = (ans + (cval - 1) * dp[i][cmax - 1]) % MOD;
		cmax = max(cmax, cval);
	}
	cout << (ans + 1) % MOD;
}

• 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: 0 / 10
• Subtask 9: 0 / 10
• Subtask 10: 0 / 10