Submission #425261

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
425261	2021-06-12T17:47:36 Z	vanic	Aliens (IOI16_aliens)	C++14	Compilation error	0 ms	0 KB

aliens

#include "aliens.h"
#include <iostream>
#include <cmath>
#include <algorithm>
#include <vector>

using namespace std;

typedef long long ll;

const int maxn=105;


int n, m, k;
bool bio[maxn][maxn];

void dfs(int x, int y){
	assert(x<m && y<m);
	if(bio[x][y]){
		return;
	}
	bio[x][y]=1;
	if(x==y){
		return;
	}
	dfs(x+1, y);
	dfs(x, y-1);
}

void dfs2(int x, int y){
	assert(x<m && y<m);
	if(bio[x][y]){
		return;
	}
	bio[x][y]=1;
	if(x==y){
		return;
	}
	dfs(x-1, y);
	dfs(x, y+1);
}

ll take_photos(int nn, int mm, int kk, vector < int > r, vector < int > c){
	n=nn;
	m=mm;
	k=kk;
	for(int i=0; i<n; i++){
		dfs(min(r[i], c[i]), max(r[i], c[i]));
		dfs2(max(r[i], c[i]), min(r[i], c[i]));
	}
	ll pov=0;
	for(int i=0; i<m; i++){
		for(int j=0; j<m; j++){
			if(bio[i][j]){
				pov++;
			}
		}
	}
	return pov;
}

Compilation message

aliens.cpp: In function 'void dfs(int, int)':
aliens.cpp:18:2: error: 'assert' was not declared in this scope
   18 |  assert(x<m && y<m);
      |  ^~~~~~
aliens.cpp:5:1: note: 'assert' is defined in header '<cassert>'; did you forget to '#include <cassert>'?
    4 | #include <algorithm>
  +++ |+#include <cassert>
    5 | #include <vector>
aliens.cpp: In function 'void dfs2(int, int)':
aliens.cpp:31:2: error: 'assert' was not declared in this scope
   31 |  assert(x<m && y<m);
      |  ^~~~~~
aliens.cpp:31:2: note: 'assert' is defined in header '<cassert>'; did you forget to '#include <cassert>'?