oj.uz

Submission #809234

# Submission time Handle Problem Language Result Execution time Memory
809234 2023-08-05T23:06:01 Z vjudge1 Bitaro the Brave (JOI19_ho_t1) C++17
100 / 100
 502 ms 71628 KB 
#include<bits/stdc++.h>
using namespace std;
int main()
{
	ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
	int h,w;
    cin >> h >> w;
    vector<int> J[h], O[h],I[w];
    for (int i = 0; i < h; i++)
    {
        string s;
        cin >> s;
        for (int j = 0; j < w; j++)
        {
            if (s[j] == 'J')
            {
                J[i].push_back(j);
            }
            else if (s[j] == 'O')
            {
                O[i].push_back(j);
            }
            else
            {
            	I[j].push_back(i);
            }
        }
        sort(O[i].begin(),O[i].end());
    }
    for(int i=0;i<w;i++)
    {
    	sort(I[i].begin(),I[i].end());
	}
    long long ans=0;
    for(int i=0;i<h;i++)
    {
    	for(int j=0;j<J[i].size();j++)
    	{
    		int res=O[i].size();
    		int l1=0,r1=O[i].size()-1;
    		while(l1<=r1)
    		{
    			int m=(l1+r1)/2;
    			if(O[i][m]>J[i][j])
    			{
    				res=m;
    				r1=m-1;
				}
				else
				{
					l1=m+1;
				}
			}
			int temp=I[J[i][j]].size();
    		int l=0,r=I[J[i][j]].size()-1;
    		while(l<=r)
    		{
    			int m=(l+r)/2;
    			if(I[J[i][j]][m]>i)
    			{
    				temp=m;
    				r=m-1;
				}
				else
				{
					l=m+1;
				}
			}
			ans+=(O[i].size()-res)*(I[J[i][j]].size()-temp);
		}
	}
	cout<<ans;
    return 0;
}

Compilation message

joi2019_ho_t1.cpp: In function 'int main()':
joi2019_ho_t1.cpp:37:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   37 |      for(int j=0;j<J[i].size();j++)
      |                  ~^~~~~~~~~~~~

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 320 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 328 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 320 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 328 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 8 ms 1620 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 3 ms 1060 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 11 ms 2260 KB Output is correct
19 Correct 4 ms 1868 KB Output is correct
20 Correct 4 ms 1620 KB Output is correct
21 Correct 11 ms 2260 KB Output is correct
22 Correct 5 ms 1876 KB Output is correct
23 Correct 4 ms 1620 KB Output is correct
24 Correct 11 ms 1960 KB Output is correct
25 Correct 4 ms 1876 KB Output is correct
26 Correct 4 ms 1620 KB Output is correct

Subtask #3
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 320 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 328 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 8 ms 1620 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 3 ms 1060 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 11 ms 2260 KB Output is correct
19 Correct 4 ms 1868 KB Output is correct
20 Correct 4 ms 1620 KB Output is correct
21 Correct 11 ms 2260 KB Output is correct
22 Correct 5 ms 1876 KB Output is correct
23 Correct 4 ms 1620 KB Output is correct
24 Correct 11 ms 1960 KB Output is correct
25 Correct 4 ms 1876 KB Output is correct
26 Correct 4 ms 1620 KB Output is correct
27 Correct 432 ms 48868 KB Output is correct
28 Correct 1 ms 596 KB Output is correct
29 Correct 11 ms 4848 KB Output is correct
30 Correct 2 ms 512 KB Output is correct
31 Correct 299 ms 38552 KB Output is correct
32 Correct 172 ms 57976 KB Output is correct
33 Correct 211 ms 57500 KB Output is correct
34 Correct 361 ms 43452 KB Output is correct
35 Correct 243 ms 59588 KB Output is correct
36 Correct 211 ms 57504 KB Output is correct
37 Correct 502 ms 71628 KB Output is correct
38 Correct 106 ms 40012 KB Output is correct
39 Correct 141 ms 46608 KB Output is correct