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Submission #574054

# Submission time Handle Problem Language Result Execution time Memory
574054 2022-06-07T16:19:36 Z luka1234 Bitaro the Brave (JOI19_ho_t1) C++14
100 / 100
 843 ms 152904 KB 
#include <bits/stdc++.h>
#define ll long long
#define ff first
#define ss second
#define db double
using namespace std;
ll n,m;
ll pref1[3001][3001];
ll pref2[3001][3001];
string s[3001];
int main(){
	cin>>n>>m;
	for(ll i=1;i<=n;i++){
		s[i].push_back('@');
		for(ll j=1;j<=m;j++){
			char c;
			cin>>c;
			s[i].push_back(c);
		}
	}
	for(ll i=1;i<=n;i++){
		for(ll j=1;j<=m;j++){
			pref1[i][j]=pref1[i][j-1];
			if(s[i][j]=='O')
			   pref1[i][j]++;
		}
	}
	for(ll j=1;j<=m;j++){
		for(ll i=1;i<=n;i++){
			pref2[i][j]=pref2[i-1][j];
			if(s[i][j]=='I')
			   pref2[i][j]++;
		}
	}
	ll ans=0;
	for(ll i=1;i<=n;i++){
		for(ll j=1;j<=m;j++){
			if(s[i][j]!='J')
			   continue;
			ll r1=pref1[i][m]-pref1[i][j-1];
			ll r2=pref2[n][j]-pref2[i-1][j];
			ans+=r1*r2;
		}
	}
	cout<<ans;
    return 0;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 468 KB Output is correct
5 Correct 2 ms 1364 KB Output is correct
6 Correct 1 ms 1364 KB Output is correct
7 Correct 2 ms 1236 KB Output is correct
8 Correct 2 ms 1364 KB Output is correct
9 Correct 2 ms 1236 KB Output is correct
10 Correct 1 ms 1236 KB Output is correct
11 Correct 2 ms 1364 KB Output is correct
12 Correct 1 ms 1236 KB Output is correct
13 Correct 2 ms 1236 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 468 KB Output is correct
5 Correct 2 ms 1364 KB Output is correct
6 Correct 1 ms 1364 KB Output is correct
7 Correct 2 ms 1236 KB Output is correct
8 Correct 2 ms 1364 KB Output is correct
9 Correct 2 ms 1236 KB Output is correct
10 Correct 1 ms 1236 KB Output is correct
11 Correct 2 ms 1364 KB Output is correct
12 Correct 1 ms 1236 KB Output is correct
13 Correct 2 ms 1236 KB Output is correct
14 Correct 18 ms 7708 KB Output is correct
15 Correct 2 ms 3796 KB Output is correct
16 Correct 11 ms 4820 KB Output is correct
17 Correct 1 ms 524 KB Output is correct
18 Correct 22 ms 8916 KB Output is correct
19 Correct 20 ms 8752 KB Output is correct
20 Correct 20 ms 8756 KB Output is correct
21 Correct 23 ms 8892 KB Output is correct
22 Correct 20 ms 8700 KB Output is correct
23 Correct 20 ms 8680 KB Output is correct
24 Correct 23 ms 8856 KB Output is correct
25 Correct 20 ms 8708 KB Output is correct
26 Correct 20 ms 8756 KB Output is correct

Subtask #3
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 468 KB Output is correct
5 Correct 2 ms 1364 KB Output is correct
6 Correct 1 ms 1364 KB Output is correct
7 Correct 2 ms 1236 KB Output is correct
8 Correct 2 ms 1364 KB Output is correct
9 Correct 2 ms 1236 KB Output is correct
10 Correct 1 ms 1236 KB Output is correct
11 Correct 2 ms 1364 KB Output is correct
12 Correct 1 ms 1236 KB Output is correct
13 Correct 2 ms 1236 KB Output is correct
14 Correct 18 ms 7708 KB Output is correct
15 Correct 2 ms 3796 KB Output is correct
16 Correct 11 ms 4820 KB Output is correct
17 Correct 1 ms 524 KB Output is correct
18 Correct 22 ms 8916 KB Output is correct
19 Correct 20 ms 8752 KB Output is correct
20 Correct 20 ms 8756 KB Output is correct
21 Correct 23 ms 8892 KB Output is correct
22 Correct 20 ms 8700 KB Output is correct
23 Correct 20 ms 8680 KB Output is correct
24 Correct 23 ms 8856 KB Output is correct
25 Correct 20 ms 8708 KB Output is correct
26 Correct 20 ms 8756 KB Output is correct
27 Correct 777 ms 152720 KB Output is correct
28 Correct 14 ms 19540 KB Output is correct
29 Correct 49 ms 13664 KB Output is correct
30 Correct 3 ms 852 KB Output is correct
31 Correct 573 ms 127520 KB Output is correct
32 Correct 785 ms 152880 KB Output is correct
33 Correct 772 ms 152532 KB Output is correct
34 Correct 683 ms 147916 KB Output is correct
35 Correct 809 ms 152904 KB Output is correct
36 Correct 786 ms 152404 KB Output is correct
37 Correct 843 ms 152904 KB Output is correct
38 Correct 570 ms 127140 KB Output is correct
39 Correct 560 ms 126932 KB Output is correct