oj.uz

Submission #825319

# Submission time Handle Problem Language Result Execution time Memory
825319 2023-08-14T17:41:33 Z NhanBeoo Bitaro the Brave (JOI19_ho_t1) C++17
100 / 100
 208 ms 159156 KB 
#include <bits/stdc++.h>
using namespace std;

#define int ll
#define MAX LLONG_MAX
#define st first
#define nd second
#define endl '\n'
#define SZ(x) ((int)x.size())
#define ALL(x) x.begin(), x.end()
typedef long long ll;
typedef pair< int, int > ii;
typedef pair< int, ii > iii;
typedef vector< int > vi;
typedef vector< ii > vii;
typedef vector< iii > viii;
typedef vector< vi > vvi;
typedef vector< vii > vvii;
typedef vector< viii > vviii;

const int N = 3005;
char a[N][N];
ii dp[N][N];

signed main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	
	int n, m; cin >> n >> m;
	for(int i=1; i<=n; i++){
		for(int j=1; j<=m; j++){
			cin >> a[i][j];
		}
	}
	for(int i=1; i<=m; i++){
		if(a[n][i] == 'O') dp[n][i] = {1, 0};
		else if(a[n][i] == 'I') dp[n][i] = {0, 1};
		else dp[n][i] = {0, 0};	
	}
	for(int i=1; i<=n; i++){
		if(a[i][m] == 'O') dp[i][m] = {1, 0};
		else if(a[i][m] == 'I') dp[i][m] = {0, 1};
		else dp[i][m] = {0, 0};
	}
	int ans = 0;
	for(int i=n-1; i>=1; i--){
		for(int j=m-1; j>=1; j--){
			if(a[i][j] == 'J'){
				ans += dp[i+1][j].nd * dp[i][j+1].st;
				dp[i][j] = {dp[i][j+1].st, dp[i+1][j].nd};
				
			}
			else if(a[i][j] == 'O'){
				dp[i][j] = {dp[i][j+1].st + 1, dp[i+1][j].nd};
			}
			else{
				dp[i][j] = {dp[i][j+1].st, dp[i+1][j].nd + 1};
			}
		}
	}
	// for(int i=1; i<=n; i++){
		// for(int j=1; j<=m; j++){
			// cout << "{" << dp[i][j].st << ", " << dp[i][j].nd << "} ";
		// }
		// cout << endl;
	// }
	cout << ans;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 1108 KB Output is correct
6 Correct 1 ms 1108 KB Output is correct
7 Correct 1 ms 980 KB Output is correct
8 Correct 1 ms 1108 KB Output is correct
9 Correct 1 ms 1108 KB Output is correct
10 Correct 1 ms 1008 KB Output is correct
11 Correct 1 ms 1108 KB Output is correct
12 Correct 1 ms 1108 KB Output is correct
13 Correct 1 ms 980 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 1108 KB Output is correct
6 Correct 1 ms 1108 KB Output is correct
7 Correct 1 ms 980 KB Output is correct
8 Correct 1 ms 1108 KB Output is correct
9 Correct 1 ms 1108 KB Output is correct
10 Correct 1 ms 1008 KB Output is correct
11 Correct 1 ms 1108 KB Output is correct
12 Correct 1 ms 1108 KB Output is correct
13 Correct 1 ms 980 KB Output is correct
14 Correct 6 ms 6788 KB Output is correct
15 Correct 2 ms 3284 KB Output is correct
16 Correct 4 ms 4052 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 7 ms 7636 KB Output is correct
19 Correct 6 ms 7508 KB Output is correct
20 Correct 6 ms 7508 KB Output is correct
21 Correct 6 ms 7896 KB Output is correct
22 Correct 6 ms 7768 KB Output is correct
23 Correct 5 ms 7732 KB Output is correct
24 Correct 9 ms 7888 KB Output is correct
25 Correct 6 ms 7764 KB Output is correct
26 Correct 6 ms 7732 KB Output is correct

Subtask #3
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 1108 KB Output is correct
6 Correct 1 ms 1108 KB Output is correct
7 Correct 1 ms 980 KB Output is correct
8 Correct 1 ms 1108 KB Output is correct
9 Correct 1 ms 1108 KB Output is correct
10 Correct 1 ms 1008 KB Output is correct
11 Correct 1 ms 1108 KB Output is correct
12 Correct 1 ms 1108 KB Output is correct
13 Correct 1 ms 980 KB Output is correct
14 Correct 6 ms 6788 KB Output is correct
15 Correct 2 ms 3284 KB Output is correct
16 Correct 4 ms 4052 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 7 ms 7636 KB Output is correct
19 Correct 6 ms 7508 KB Output is correct
20 Correct 6 ms 7508 KB Output is correct
21 Correct 6 ms 7896 KB Output is correct
22 Correct 6 ms 7768 KB Output is correct
23 Correct 5 ms 7732 KB Output is correct
24 Correct 9 ms 7888 KB Output is correct
25 Correct 6 ms 7764 KB Output is correct
26 Correct 6 ms 7732 KB Output is correct
27 Correct 181 ms 158540 KB Output is correct
28 Correct 7 ms 16980 KB Output is correct
29 Correct 13 ms 12868 KB Output is correct
30 Correct 1 ms 724 KB Output is correct
31 Correct 149 ms 121612 KB Output is correct
32 Correct 153 ms 159156 KB Output is correct
33 Correct 172 ms 158436 KB Output is correct
34 Correct 148 ms 141040 KB Output is correct
35 Correct 142 ms 158936 KB Output is correct
36 Correct 154 ms 158512 KB Output is correct
37 Correct 208 ms 159032 KB Output is correct
38 Correct 106 ms 120784 KB Output is correct
39 Correct 103 ms 121148 KB Output is correct