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Submission #1067938

# Submission time Handle Problem Language Result Execution time Memory
1067938 2024-08-21T05:49:55 Z LittleOrange Rectangles (IOI19_rect) C++17
37 / 100
 5000 ms 149512 KB 
#include "rect.h"
#include<bits/stdc++.h>
using namespace std;
using ll = long long;

long long count_rectangles(std::vector<std::vector<int> > a) {
	ll n = a.size(), m = a[0].size();
	if (n<3||m<3) return 0;
	vector<vector<pair<ll,ll>>> row(n),col(m);
	for(ll i = 0;i<n;i++){
		vector<pair<ll,ll>> st;
		for(ll j = 0;j<m;j++){
			while(st.size()&&st.back().first<a[i][j]){
				row[i].push_back({st.back().second,j});
				st.pop_back();
			}
			if(st.size()){
				row[i].push_back({st.back().second,j});
			}
			if (st.size()&&st.back().first==a[i][j]) st.pop_back();
			st.push_back({a[i][j],j});
		}
	}
	for(ll j = 0;j<m;j++){
		vector<pair<ll,ll>> st;
		for(ll i = 0;i<n;i++){
			while(st.size()&&st.back().first<a[i][j]){
				col[j].push_back({st.back().second,i});
				st.pop_back();
			}
			if(st.size()){
				col[j].push_back({st.back().second,i});
			}
			if (st.size()&&st.back().first==a[i][j]) st.pop_back();
			st.push_back({a[i][j],i});
		}
	}
	for(auto &o : row) sort(o.begin(),o.end());
	for(auto &o : col) sort(o.begin(),o.end());
	ll ans = 0;
	for(ll r1 = 1;r1<n-1;r1++){
		vector<pair<ll,ll>> cur = row[r1];
		for(ll r2 = r1;r2<n-1;r2++){
			if(r2>r1){
				vector<pair<ll,ll>> nw;
				for(auto &o : cur){
					if (binary_search(row[r2].begin(),row[r2].end(),o)){
						nw.push_back(o);
					}
				}
				nw.swap(cur);
			}
			pair<ll,ll> t = {r1-1,r2+1};
			vector<ll> ok(m,0);
			for(ll i = 0;i<m;i++) ok[i] = binary_search(col[i].begin(),col[i].end(),t);
			vector<ll> p(m+1,0);
			for(ll i = 0;i<m;i++) p[i+1] = p[i]+ok[i];
			for(auto &o : cur){
				if (p[o.second]-p[o.first+1]==(o.second-o.first-1)&&o.second-o.first>1) ans++;
			}
		}
	}
	return ans;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 13 ms 1116 KB Output is correct
23 Correct 12 ms 1116 KB Output is correct
24 Correct 12 ms 1144 KB Output is correct
25 Correct 9 ms 604 KB Output is correct
26 Correct 12 ms 1136 KB Output is correct
27 Correct 11 ms 1112 KB Output is correct
28 Correct 11 ms 1128 KB Output is correct
29 Correct 5 ms 604 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 13 ms 1116 KB Output is correct
18 Correct 12 ms 1116 KB Output is correct
19 Correct 12 ms 1144 KB Output is correct
20 Correct 9 ms 604 KB Output is correct
21 Correct 12 ms 1136 KB Output is correct
22 Correct 11 ms 1112 KB Output is correct
23 Correct 11 ms 1128 KB Output is correct
24 Correct 5 ms 604 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 201 ms 3976 KB Output is correct
31 Correct 183 ms 3932 KB Output is correct
32 Correct 185 ms 3932 KB Output is correct
33 Correct 153 ms 3928 KB Output is correct
34 Correct 192 ms 3928 KB Output is correct
35 Correct 192 ms 3928 KB Output is correct
36 Correct 199 ms 3928 KB Output is correct
37 Correct 195 ms 3956 KB Output is correct

Subtask #4
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 13 ms 1116 KB Output is correct
18 Correct 12 ms 1116 KB Output is correct
19 Correct 12 ms 1144 KB Output is correct
20 Correct 9 ms 604 KB Output is correct
21 Correct 12 ms 1136 KB Output is correct
22 Correct 11 ms 1112 KB Output is correct
23 Correct 11 ms 1128 KB Output is correct
24 Correct 5 ms 604 KB Output is correct
25 Correct 201 ms 3976 KB Output is correct
26 Correct 183 ms 3932 KB Output is correct
27 Correct 185 ms 3932 KB Output is correct
28 Correct 153 ms 3928 KB Output is correct
29 Correct 192 ms 3928 KB Output is correct
30 Correct 192 ms 3928 KB Output is correct
31 Correct 199 ms 3928 KB Output is correct
32 Correct 195 ms 3956 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Execution timed out 5036 ms 31968 KB Time limit exceeded
39 Halted 0 ms 0 KB -

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1096 KB Output is correct
2 Correct 2 ms 980 KB Output is correct
3 Correct 1 ms 860 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 2 ms 956 KB Output is correct
6 Correct 2 ms 1076 KB Output is correct
7 Correct 2 ms 1000 KB Output is correct
8 Correct 2 ms 860 KB Output is correct
9 Correct 2 ms 860 KB Output is correct
10 Correct 0 ms 464 KB Output is correct
11 Correct 0 ms 344 KB Output is correct

Subtask #6
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Execution timed out 5093 ms 149512 KB Time limit exceeded
8 Halted 0 ms 0 KB -

Subtask #7
0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 13 ms 1116 KB Output is correct
18 Correct 12 ms 1116 KB Output is correct
19 Correct 12 ms 1144 KB Output is correct
20 Correct 9 ms 604 KB Output is correct
21 Correct 12 ms 1136 KB Output is correct
22 Correct 11 ms 1112 KB Output is correct
23 Correct 11 ms 1128 KB Output is correct
24 Correct 5 ms 604 KB Output is correct
25 Correct 201 ms 3976 KB Output is correct
26 Correct 183 ms 3932 KB Output is correct
27 Correct 185 ms 3932 KB Output is correct
28 Correct 153 ms 3928 KB Output is correct
29 Correct 192 ms 3928 KB Output is correct
30 Correct 192 ms 3928 KB Output is correct
31 Correct 199 ms 3928 KB Output is correct
32 Correct 195 ms 3956 KB Output is correct
33 Execution timed out 5036 ms 31968 KB Time limit exceeded
34 Halted 0 ms 0 KB -