oj.uz

Submission #169800

# Submission time Handle Problem Language Result Execution time Memory
169800 2019-12-22T22:26:13 Z arthur_nascimento Rectangles (IOI19_rect) C++14
37 / 100
 5000 ms 86008 KB 
#include "rect.h"
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define debug 
#define ll long long
#define maxn 2525

int M[maxn][maxn];

int n,m;

int line(int i,int yi,int yf){
	int r = 1;
	for(int j=yi;j<=yf;j++)
		if(M[i][j] >= M[i][yi-1] || M[i][j] >= M[i][yf+1]) r = 0;
	return r;
}

int column(int j,int xi,int xf){
	int r = 1;
	for(int i=xi;i<=xf;i++)
		if(M[i][j] >= M[xi-1][j] || M[i][j] >= M[xf+1][j]) r = 0;
	return r;
}

int check(int xi,int xf,int yi,int yf){
	int r = 1;
	assert(xi >= 1 && xf <= n-2 && yi >= 1 && yf <= m-2);
	for(int i=xi;i<=xf;i++)
		r *= line(i,yi,yf);
	for(int j=yi;j<=yf;j++)
		r *= column(j,xi,xf);
	if(r)
		debug("achou x:%d~%d y: %d~%d\n",xi,xf,yi,yf);
	return r;
} 

ll go4(int xi,int xf,int yi,int yf,int ym){

	if(xi > xf || yi > yf) return 0;
	if(yi > ym || yf < ym) return 0;
	debug("oi4\n");
	ll ans = check(xi,xf,yi,yf);
	
	int mx = -1, id = -1;
	
	for(int i=yi;i<=yf;i++)
		if(M[xi][i] > mx){
			mx = M[xi][i];
			id = i;
		}
		
	ans += go4(xi,xf,yi,id-1,ym) + go4(xi,xf,id+1,yf,ym);
	debug("tchau 4\n");
	return ans;

}

ll go3(int xi,int xf,int yi,int yf,int ym){

	if(xi == 0 || xf == n-1) return 0;
	if(xi > xf) return 0;
	
	int A = ym, B = ym;
	
	debug("oi x: %d~%d y: %d~%d quebra A ? B ?\n",xi,xf,yi,yf);

	
	while(1){
		A--;
		if(A == 0 || A < yi) break;
		debug("A %d\n",A);
		int ok = 1;
		for(int i=xi;i<=xf;i++)
			if(M[i][A] >= M[xi-1][A] || M[i][A] >= M[xf+1][A]) ok = 0;
		if(ok == 0) break;
	}
	A++;
	
	while(1){
		B++;
		if(B == m-1 || B > yf) break;
		int ok = 1;
		for(int i=xi;i<=xf;i++)
			if(M[i][B] >= M[xi-1][B] || M[i][B] >= M[xf+1][B]) ok = 0;
	}
	B--;
	
	debug("go3 x: %d~%d y: %d~%d quebra A %d B %d\n",xi,xf,yi,yf,A,B);
	
	return go4(xi,xf,A,B,ym);

}

ll go2(int xi,int xf,int yi,int yf,int ym){
	
	if(xi > xf) return 0;
	if(yi > yf) return 0;
	if(ym == 0 || ym == m-1) return 0;
	debug("go2 x %d~%d y %d~%d\n",xi,xf,yi,yf);
	
	int mx = -1, id = -1;
	
	for(int i=xi;i<=xf;i++)
		if(M[i][ym] > mx){
			mx = M[i][ym];
			id = i;
		}
		
	ll ans = go3(xi,id-1,yi,yf,ym) + go3(id+1,xf,yi,yf,ym) + go2(xi,id-1,yi,yf,ym) + go2(id+1,xf,yi,yf,ym);
	
	return ans;

}

ll go(int yi,int yf){

	if(yi > yf) return 0;
	
	int ym = (yi+yf)/2;
	debug("oi\n");
	
	ll ans = go(yi,ym-1) + go(ym+1,yf) + go2(0,n-1,yi,yf,ym);
	
	return ans;

}

long long count_rectangles(std::vector<std::vector<int> > a) {
	
	 n = a.size();
	 m = a[0].size();
	
	for(int i=0;i<n;i++)
		for(int j=0;j<m;j++)
			M[i][j] = a[i][j];
			
	return go(0,m-1);
	
}

Compilation message

rect.cpp: In function 'int check(int, int, int, int)':
rect.cpp:35:36: warning: left operand of comma operator has no effect [-Wunused-value]
   debug("achou x:%d~%d y: %d~%d\n",xi,xf,yi,yf);
                                    ^~
rect.cpp:35:39: warning: right operand of comma operator has no effect [-Wunused-value]
   debug("achou x:%d~%d y: %d~%d\n",xi,xf,yi,yf);
                                       ^~
rect.cpp:35:42: warning: right operand of comma operator has no effect [-Wunused-value]
   debug("achou x:%d~%d y: %d~%d\n",xi,xf,yi,yf);
                                          ^~
rect.cpp:35:45: warning: right operand of comma operator has no effect [-Wunused-value]
   debug("achou x:%d~%d y: %d~%d\n",xi,xf,yi,yf);
                                             ^~
rect.cpp: In function 'long long int go4(int, int, int, int, int)':
rect.cpp:43:16: warning: statement has no effect [-Wunused-value]
  debug("oi4\n");
                ^
rect.cpp:55:20: warning: statement has no effect [-Wunused-value]
  debug("tchau 4\n");
                    ^
rect.cpp: In function 'long long int go3(int, int, int, int, int)':
rect.cpp:67:48: warning: left operand of comma operator has no effect [-Wunused-value]
  debug("oi x: %d~%d y: %d~%d quebra A ? B ?\n",xi,xf,yi,yf);
                                                ^~
rect.cpp:67:51: warning: right operand of comma operator has no effect [-Wunused-value]
  debug("oi x: %d~%d y: %d~%d quebra A ? B ?\n",xi,xf,yi,yf);
                                                   ^~
rect.cpp:67:54: warning: right operand of comma operator has no effect [-Wunused-value]
  debug("oi x: %d~%d y: %d~%d quebra A ? B ?\n",xi,xf,yi,yf);
                                                      ^~
rect.cpp:67:57: warning: right operand of comma operator has no effect [-Wunused-value]
  debug("oi x: %d~%d y: %d~%d quebra A ? B ?\n",xi,xf,yi,yf);
                                                         ^~
rect.cpp:73:18: warning: left operand of comma operator has no effect [-Wunused-value]
   debug("A %d\n",A);
                  ^
rect.cpp:84:7: warning: variable 'ok' set but not used [-Wunused-but-set-variable]
   int ok = 1;
       ^~
rect.cpp:90:51: warning: left operand of comma operator has no effect [-Wunused-value]
  debug("go3 x: %d~%d y: %d~%d quebra A %d B %d\n",xi,xf,yi,yf,A,B);
                                                   ^~
rect.cpp:90:54: warning: right operand of comma operator has no effect [-Wunused-value]
  debug("go3 x: %d~%d y: %d~%d quebra A %d B %d\n",xi,xf,yi,yf,A,B);
                                                      ^~
rect.cpp:90:57: warning: right operand of comma operator has no effect [-Wunused-value]
  debug("go3 x: %d~%d y: %d~%d quebra A %d B %d\n",xi,xf,yi,yf,A,B);
                                                         ^~
rect.cpp:90:60: warning: right operand of comma operator has no effect [-Wunused-value]
  debug("go3 x: %d~%d y: %d~%d quebra A %d B %d\n",xi,xf,yi,yf,A,B);
                                                            ^~
rect.cpp:90:63: warning: right operand of comma operator has no effect [-Wunused-value]
  debug("go3 x: %d~%d y: %d~%d quebra A %d B %d\n",xi,xf,yi,yf,A,B);
                                                               ^
rect.cpp:90:65: warning: right operand of comma operator has no effect [-Wunused-value]
  debug("go3 x: %d~%d y: %d~%d quebra A %d B %d\n",xi,xf,yi,yf,A,B);
                                                                 ^
rect.cpp: In function 'long long int go2(int, int, int, int, int)':
rect.cpp:101:32: warning: left operand of comma operator has no effect [-Wunused-value]
  debug("go2 x %d~%d y %d~%d\n",xi,xf,yi,yf);
                                ^~
rect.cpp:101:35: warning: right operand of comma operator has no effect [-Wunused-value]
  debug("go2 x %d~%d y %d~%d\n",xi,xf,yi,yf);
                                   ^~
rect.cpp:101:38: warning: right operand of comma operator has no effect [-Wunused-value]
  debug("go2 x %d~%d y %d~%d\n",xi,xf,yi,yf);
                                      ^~
rect.cpp:101:41: warning: right operand of comma operator has no effect [-Wunused-value]
  debug("go2 x %d~%d y %d~%d\n",xi,xf,yi,yf);
                                         ^~
rect.cpp: In function 'long long int go(int, int)':
rect.cpp:122:15: warning: statement has no effect [-Wunused-value]
  debug("oi\n");
               ^

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 3 ms 376 KB Output is correct
3 Correct 3 ms 376 KB Output is correct
4 Correct 3 ms 504 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 504 KB Output is correct
7 Correct 2 ms 504 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 380 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 504 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 256 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 504 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 376 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 3 ms 376 KB Output is correct
3 Correct 3 ms 376 KB Output is correct
4 Correct 3 ms 504 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 504 KB Output is correct
7 Correct 2 ms 504 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 380 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 504 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 33 ms 760 KB Output is correct
18 Correct 33 ms 808 KB Output is correct
19 Correct 33 ms 760 KB Output is correct
20 Correct 3 ms 760 KB Output is correct
21 Correct 5 ms 700 KB Output is correct
22 Correct 5 ms 760 KB Output is correct
23 Correct 5 ms 760 KB Output is correct
24 Correct 3 ms 760 KB Output is correct
25 Correct 2 ms 256 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 504 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 376 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 3 ms 376 KB Output is correct
3 Correct 3 ms 376 KB Output is correct
4 Correct 3 ms 504 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 504 KB Output is correct
7 Correct 2 ms 504 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 380 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 504 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 33 ms 760 KB Output is correct
18 Correct 33 ms 808 KB Output is correct
19 Correct 33 ms 760 KB Output is correct
20 Correct 3 ms 760 KB Output is correct
21 Correct 5 ms 700 KB Output is correct
22 Correct 5 ms 760 KB Output is correct
23 Correct 5 ms 760 KB Output is correct
24 Correct 3 ms 760 KB Output is correct
25 Correct 1193 ms 1820 KB Output is correct
26 Correct 1196 ms 1860 KB Output is correct
27 Correct 1200 ms 2040 KB Output is correct
28 Correct 12 ms 1656 KB Output is correct
29 Correct 23 ms 1784 KB Output is correct
30 Correct 23 ms 1912 KB Output is correct
31 Correct 24 ms 1928 KB Output is correct
32 Correct 24 ms 1912 KB Output is correct
33 Correct 2 ms 256 KB Output is correct
34 Correct 2 ms 376 KB Output is correct
35 Correct 2 ms 504 KB Output is correct
36 Correct 2 ms 376 KB Output is correct
37 Correct 2 ms 376 KB Output is correct

Subtask #4
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 3 ms 376 KB Output is correct
3 Correct 3 ms 376 KB Output is correct
4 Correct 3 ms 504 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 504 KB Output is correct
7 Correct 2 ms 504 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 380 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 504 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 33 ms 760 KB Output is correct
18 Correct 33 ms 808 KB Output is correct
19 Correct 33 ms 760 KB Output is correct
20 Correct 3 ms 760 KB Output is correct
21 Correct 5 ms 700 KB Output is correct
22 Correct 5 ms 760 KB Output is correct
23 Correct 5 ms 760 KB Output is correct
24 Correct 3 ms 760 KB Output is correct
25 Correct 1193 ms 1820 KB Output is correct
26 Correct 1196 ms 1860 KB Output is correct
27 Correct 1200 ms 2040 KB Output is correct
28 Correct 12 ms 1656 KB Output is correct
29 Correct 23 ms 1784 KB Output is correct
30 Correct 23 ms 1912 KB Output is correct
31 Correct 24 ms 1928 KB Output is correct
32 Correct 24 ms 1912 KB Output is correct
33 Execution timed out 5014 ms 12152 KB Time limit exceeded
34 Halted 0 ms 0 KB -

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 248 KB Output is correct
2 Correct 15 ms 504 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 3 ms 504 KB Output is correct
6 Correct 3 ms 504 KB Output is correct
7 Correct 3 ms 632 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 3 ms 500 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct

Subtask #6
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 1363 ms 40696 KB Output is correct
3 Execution timed out 5016 ms 86008 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #7
0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 3 ms 376 KB Output is correct
3 Correct 3 ms 376 KB Output is correct
4 Correct 3 ms 504 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 504 KB Output is correct
7 Correct 2 ms 504 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 380 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 504 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 33 ms 760 KB Output is correct
18 Correct 33 ms 808 KB Output is correct
19 Correct 33 ms 760 KB Output is correct
20 Correct 3 ms 760 KB Output is correct
21 Correct 5 ms 700 KB Output is correct
22 Correct 5 ms 760 KB Output is correct
23 Correct 5 ms 760 KB Output is correct
24 Correct 3 ms 760 KB Output is correct
25 Correct 1193 ms 1820 KB Output is correct
26 Correct 1196 ms 1860 KB Output is correct
27 Correct 1200 ms 2040 KB Output is correct
28 Correct 12 ms 1656 KB Output is correct
29 Correct 23 ms 1784 KB Output is correct
30 Correct 23 ms 1912 KB Output is correct
31 Correct 24 ms 1928 KB Output is correct
32 Correct 24 ms 1912 KB Output is correct
33 Execution timed out 5014 ms 12152 KB Time limit exceeded
34 Halted 0 ms 0 KB -