Submission #256032

#	Time	Username	Problem	Language	Result	Execution time	Memory
256032		b00n0rp	Rectangles (IOI19_rect)	C++17	Compilation error	0 ms	0 KiB

rect

#include "rect.h"
#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define vi vector<int>
#define pb push_back
#define REP(i,n) for(int i = 0; i < n; i++)
#define FOR(i,a,b) for(int i = a; i < b; i++)

ll count_rectangles(vector<vi> a) {
	int n,m,
	n = a.size();
	m = a[0].size();
	MX = 705;
	bitset<MX> hor[MX][MX],ver[MX][MX];
	bitset<MX> gg[MX];
	REP(i,n){
		REP(j,m){
			int mx = -1;
			FOR(k,j,m){
				mx = max(mx,a[i][k]);
				hor[j][k][i] = (j and k < m-1 and mx < min(a[i][j-1],a[i][k+1]));
			}
		}
	}
	REP(j,m){
		REP(i,n){
			int mx = -1;
			FOR(k,i,n){
				mx = max(mx,a[k][j]);
				ver[i][k][j] = (i and k < n-1 and mx < min(a[i-1][j],a[k+1][j]));
			}
		}
	}
	ll ans = 0;
	REP(i1,n){
		REP(j1,m){
			FOR(i2,i1,n){
				gg[i2].reset();
			}
			FOR(i2,i1,n){
				FOR(j2,j1,m){
					if(!ver[i1][i2][j2]) break;
					gg[i2][j2] = 1;
				}
			}
			FOR(j2,j1,m){
				FOR(i2,i1,n){
					if(!hor[j1][j2][i2]) break;
					ans += gg[i2][j2];
				}
			}
		}
	}
	return ans;
}

Compilation message (stderr)

rect.cpp: In function 'long long int count_rectangles(std::vector<std::vector<int> >)':
rect.cpp:13:2: error: redeclaration of 'int n'
  n = a.size();
  ^
rect.cpp:12:6: note: 'int n' previously declared here
  int n,m,
      ^
rect.cpp:15:2: error: 'MX' was not declared in this scope
  MX = 705;
  ^~
rect.cpp:16:11: error: could not convert template argument 'MX' from '<type error>' to 'long unsigned int'
  bitset<MX> hor[MX][MX],ver[MX][MX];
           ^
rect.cpp:17:11: error: could not convert template argument 'MX' from '<type error>' to 'long unsigned int'
  bitset<MX> gg[MX];
           ^
rect.cpp:23:5: error: 'hor' was not declared in this scope
     hor[j][k][i] = (j and k < m-1 and mx < min(a[i][j-1],a[i][k+1]));
     ^~~
rect.cpp:32:5: error: 'ver' was not declared in this scope
     ver[i][k][j] = (i and k < n-1 and mx < min(a[i-1][j],a[k+1][j]));
     ^~~
rect.cpp:40:5: error: 'gg' was not declared in this scope
     gg[i2].reset();
     ^~
rect.cpp:44:10: error: 'ver' was not declared in this scope
      if(!ver[i1][i2][j2]) break;
          ^~~
rect.cpp:45:6: error: 'gg' was not declared in this scope
      gg[i2][j2] = 1;
      ^~
rect.cpp:50:10: error: 'hor' was not declared in this scope
      if(!hor[j1][j2][i2]) break;
          ^~~
rect.cpp:51:13: error: 'gg' was not declared in this scope
      ans += gg[i2][j2];
             ^~