oj.uz

Submission #809209

# Submission time Handle Problem Language Result Execution time Memory
809209 2023-08-05T21:39:17 Z Username4132 Rectangles (IOI19_rect) C++14
27 / 100
 402 ms 1048576 KB 
#include "rect.h"
#include<iostream>
#include<vector>
#include<bitset>
#include<cassert>
using namespace std;
using ll = long long;
#define forn(i, n) for(int i=0; i<(int)n; ++i)
#define forsn(i, s, n) for(int i=s; i<(int)n; ++i)
#define dforn(i, n) for(int i=n-1; i>=0; --i)
#define dforsn(i, s, n) for(int i=n-1; i>=s; --i)
#define PB push_back


const int MAXN = 800;
bitset<MAXN> mask[MAXN][MAXN]; // column, start row
bitset<MAXN> one("1"), full;
int n, m, arr[MAXN][MAXN], brr[MAXN][MAXN];
int far[MAXN][MAXN][MAXN]; // row, l, r

void calc1(){
	dforn(row, n){
		forsn(i, 1, m-1){
			int mx = -1;
			forsn(j, i, m-1){
				mx = max(mx, arr[row][j]);
				if(mx<arr[row][i-1] && mx<arr[row][j+1]){
					far[row][i][j]=far[row+1][i][j];
				}
				else far[row][i][j]=row;
			}
		}
	}
}

void calc2(){
	forn(col, m){
		forsn(i, 1, n-1){
			int mx = -1;
			forsn(j, i, n-1){
				mx = max(mx, brr[col][j]);
				if(mx<brr[col][i-1] && mx<brr[col][j+1]){
					mask[i][col]|=(one<<j);
				}
			}
		}
	}
}

long long count_rectangles(std::vector<std::vector<int> > a) {
	n=(int)a.size(), m=(int)a[0].size();
	assert(n<MAXN-4);
	assert(m<MAXN-4);
	forn(i, MAXN-3) full|=(one<<i);
	forn(i, n) forn(j, m) brr[j][i]=arr[i][j]=a[i][j];
	forn(i, m) forn(j, m) far[n][i][j]=n;

	calc1();
	calc2();

	ll ans=0;
	forsn(row, 1, n-1){
		forsn(i, 1, m-1){
			bitset<MAXN> bt("0");
			bt|=full;
			forsn(j, i, m-1){
				bt&=mask[row][j];
				ans+=(bt&(full>>(MAXN-3-far[row][i][j]))).count();
			}
		}
	}
	
	return ans;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 2 ms 3540 KB Output is correct
3 Correct 2 ms 3540 KB Output is correct
4 Correct 2 ms 3540 KB Output is correct
5 Correct 2 ms 3288 KB Output is correct
6 Correct 3 ms 3540 KB Output is correct
7 Correct 1 ms 1748 KB Output is correct
8 Correct 1 ms 1748 KB Output is correct
9 Correct 2 ms 3540 KB Output is correct
10 Correct 2 ms 3540 KB Output is correct
11 Correct 2 ms 3540 KB Output is correct
12 Correct 2 ms 3540 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 596 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 0 ms 340 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 2 ms 3540 KB Output is correct
20 Correct 1 ms 1748 KB Output is correct
21 Correct 0 ms 340 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 2 ms 3540 KB Output is correct
3 Correct 2 ms 3540 KB Output is correct
4 Correct 2 ms 3540 KB Output is correct
5 Correct 2 ms 3288 KB Output is correct
6 Correct 3 ms 3540 KB Output is correct
7 Correct 1 ms 1748 KB Output is correct
8 Correct 1 ms 1748 KB Output is correct
9 Correct 2 ms 3540 KB Output is correct
10 Correct 2 ms 3540 KB Output is correct
11 Correct 2 ms 3540 KB Output is correct
12 Correct 2 ms 3540 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 596 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 0 ms 340 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 2 ms 3540 KB Output is correct
20 Correct 1 ms 1748 KB Output is correct
21 Correct 0 ms 340 KB Output is correct
22 Correct 21 ms 21940 KB Output is correct
23 Correct 21 ms 21944 KB Output is correct
24 Correct 21 ms 21948 KB Output is correct
25 Correct 25 ms 21940 KB Output is correct
26 Correct 21 ms 21684 KB Output is correct
27 Correct 23 ms 21588 KB Output is correct
28 Correct 22 ms 21932 KB Output is correct
29 Correct 8 ms 11348 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 2 ms 3540 KB Output is correct
3 Correct 2 ms 3540 KB Output is correct
4 Correct 2 ms 3540 KB Output is correct
5 Correct 2 ms 3288 KB Output is correct
6 Correct 3 ms 3540 KB Output is correct
7 Correct 1 ms 1748 KB Output is correct
8 Correct 1 ms 1748 KB Output is correct
9 Correct 2 ms 3540 KB Output is correct
10 Correct 2 ms 3540 KB Output is correct
11 Correct 2 ms 3540 KB Output is correct
12 Correct 2 ms 3540 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 596 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 21 ms 21940 KB Output is correct
18 Correct 21 ms 21944 KB Output is correct
19 Correct 21 ms 21948 KB Output is correct
20 Correct 25 ms 21940 KB Output is correct
21 Correct 21 ms 21684 KB Output is correct
22 Correct 23 ms 21588 KB Output is correct
23 Correct 22 ms 21932 KB Output is correct
24 Correct 8 ms 11348 KB Output is correct
25 Correct 0 ms 340 KB Output is correct
26 Correct 0 ms 340 KB Output is correct
27 Correct 2 ms 3540 KB Output is correct
28 Correct 1 ms 1748 KB Output is correct
29 Correct 0 ms 340 KB Output is correct
30 Correct 257 ms 132212 KB Output is correct
31 Correct 299 ms 132284 KB Output is correct
32 Correct 260 ms 132272 KB Output is correct
33 Correct 256 ms 132264 KB Output is correct
34 Correct 261 ms 132380 KB Output is correct
35 Correct 262 ms 132332 KB Output is correct
36 Correct 261 ms 132216 KB Output is correct
37 Correct 252 ms 129884 KB Output is correct

Subtask #4
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 2 ms 3540 KB Output is correct
3 Correct 2 ms 3540 KB Output is correct
4 Correct 2 ms 3540 KB Output is correct
5 Correct 2 ms 3288 KB Output is correct
6 Correct 3 ms 3540 KB Output is correct
7 Correct 1 ms 1748 KB Output is correct
8 Correct 1 ms 1748 KB Output is correct
9 Correct 2 ms 3540 KB Output is correct
10 Correct 2 ms 3540 KB Output is correct
11 Correct 2 ms 3540 KB Output is correct
12 Correct 2 ms 3540 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 596 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 21 ms 21940 KB Output is correct
18 Correct 21 ms 21944 KB Output is correct
19 Correct 21 ms 21948 KB Output is correct
20 Correct 25 ms 21940 KB Output is correct
21 Correct 21 ms 21684 KB Output is correct
22 Correct 23 ms 21588 KB Output is correct
23 Correct 22 ms 21932 KB Output is correct
24 Correct 8 ms 11348 KB Output is correct
25 Correct 257 ms 132212 KB Output is correct
26 Correct 299 ms 132284 KB Output is correct
27 Correct 260 ms 132272 KB Output is correct
28 Correct 256 ms 132264 KB Output is correct
29 Correct 261 ms 132380 KB Output is correct
30 Correct 262 ms 132332 KB Output is correct
31 Correct 261 ms 132216 KB Output is correct
32 Correct 252 ms 129884 KB Output is correct
33 Correct 0 ms 340 KB Output is correct
34 Correct 0 ms 340 KB Output is correct
35 Correct 2 ms 3540 KB Output is correct
36 Correct 1 ms 1748 KB Output is correct
37 Correct 0 ms 340 KB Output is correct
38 Runtime error 402 ms 1048576 KB Execution killed with signal 9
39 Halted 0 ms 0 KB -

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 27 ms 468 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #6
0 / 13.0

# 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 2 ms 3540 KB Output is correct
4 Correct 1 ms 1748 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 ms 724 KB Output is correct
7 Runtime error 54 ms 22884 KB Execution killed with signal 6
8 Halted 0 ms 0 KB -

Subtask #7
0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 2 ms 3540 KB Output is correct
3 Correct 2 ms 3540 KB Output is correct
4 Correct 2 ms 3540 KB Output is correct
5 Correct 2 ms 3288 KB Output is correct
6 Correct 3 ms 3540 KB Output is correct
7 Correct 1 ms 1748 KB Output is correct
8 Correct 1 ms 1748 KB Output is correct
9 Correct 2 ms 3540 KB Output is correct
10 Correct 2 ms 3540 KB Output is correct
11 Correct 2 ms 3540 KB Output is correct
12 Correct 2 ms 3540 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 596 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 21 ms 21940 KB Output is correct
18 Correct 21 ms 21944 KB Output is correct
19 Correct 21 ms 21948 KB Output is correct
20 Correct 25 ms 21940 KB Output is correct
21 Correct 21 ms 21684 KB Output is correct
22 Correct 23 ms 21588 KB Output is correct
23 Correct 22 ms 21932 KB Output is correct
24 Correct 8 ms 11348 KB Output is correct
25 Correct 257 ms 132212 KB Output is correct
26 Correct 299 ms 132284 KB Output is correct
27 Correct 260 ms 132272 KB Output is correct
28 Correct 256 ms 132264 KB Output is correct
29 Correct 261 ms 132380 KB Output is correct
30 Correct 262 ms 132332 KB Output is correct
31 Correct 261 ms 132216 KB Output is correct
32 Correct 252 ms 129884 KB Output is correct
33 Runtime error 402 ms 1048576 KB Execution killed with signal 9
34 Halted 0 ms 0 KB -