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Submission #527182

# Submission time Handle Problem Language Result Execution time Memory
527182 2022-02-17T03:18:32 Z squiddy Calvinball championship (CEOI15_teams) C++14
70 / 100
 58 ms 65540 KB 
#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;
int dp[10005][10005];

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

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 332 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 716 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 716 KB Output is correct
2 Correct 1 ms 716 KB Output is correct
3 Correct 1 ms 716 KB Output is correct

Subtask #6
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4300 KB Output is correct
2 Correct 4 ms 4300 KB Output is correct
3 Correct 2 ms 4300 KB Output is correct

Subtask #7
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 12236 KB Output is correct
2 Correct 10 ms 12156 KB Output is correct
3 Correct 7 ms 12236 KB Output is correct

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 41 ms 65540 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 57 ms 65540 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 58 ms 65540 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -