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Submission #1027483

# Submission time Handle Problem Language Result Execution time Memory
1027483 2024-07-19T06:55:54 Z Muhammet Boat (APIO16_boat) C++17
0 / 100
 1 ms 348 KB 
#include <bits/stdc++.h>
using namespace std;

#define ll long long int
#define sz(x) (int)x.size()
#define ff first
#define ss second

const ll N = 505;
const ll M = 1e9 + 7;

ll T, n, a[N], b[N], dp[N][5];

int main(){
	ios::sync_with_stdio(false); cin.tie(0);

	cin >> n;
	for(int i = 1; i <= n; i++){
		cin >> a[i] >> b[i];
	}
	ll ans = 0;
	for(int i = 1; i <= n; i++){
		ll mx = 0, mx1 = 0, mx2 = 0;
		for(int j = 1; j < i; j++){
			mx = max(mx,dp[j][0]);
			mx1 = max(mx1,dp[j][1]);
			if(a[j] < a[i]) mx2 = max(mx2,dp[j][1]);
		}
		dp[i][0] = max(mx1,mx);
		dp[i][1] = mx2+1;
		ans += dp[i][1];
		ans %= M;
		dp[i][0] %= M;
		dp[i][1] %= M;
	}

	cout << ans;

	return 0;
}

Subtask #1
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 344 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 22.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 344 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 27.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 42.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 344 KB Output isn't correct
2 Halted 0 ms 0 KB -