Submission #168734

#	Time	Username	Problem	Language	Result	Execution time	Memory
168734		Atashka01	Red-blue table (IZhO19_stones)	C++11	0 / 100	65 ms	1912 KiB

stones

//Euzubillahimines-seytanir-rajim Bismillahir-rahmanir-rahym

/*
ID:
TASK:
LANG: C++
*/

#include <iostream>
#include <vector>
#include <map>
#include <stack>
#include <string>
#include <algorithm>
#include <cmath>
#include <queue>
#define pb push_back
#define ll long long
#define ff first
#define ss second
#define mp make_pair
#define PII pair<int,int>
#define inf 1000000001
using namespace std;

unsigned int a[1001][1001], ans;

void f(unsigned int n,unsigned int m){
	
	vector<pair<int,int>> v;
	
	unsigned int k = n*m - ( m*(n/2+1) );
	
	k /= (m/2+1);
	
	ans = m + k;
	
	for(int i=1;i<=k;i++)
	for(int j=1;j<=m;j++) a[i][j] = 0;
		
	
	for(int i=1;i<=k;i++) v.push_back( {0,i} );
	
	for(int i=1;i<=m;i++){
		
		int l = k/2 + 1;
		int t = m/2 + 1;
		
		sort(v.begin(),v.end());
		
		for(int j=0;j<v.size();j++){
			
			if( l == 0) break;
			
			if( v[j].ff < t ){
				
				a[v[j].ss][i] = 1;
				v[j].ff++;
				l--;
				
			}
			
		}
		
	}
	
}

unsigned int t;

int main(){
	
	cin>>t;
	
	while(t--){
	
		unsigned int n, m;
		
		cin>>n>>m;
		
		if( n!= m ){
			
			f( min(n,m) , max(n,m) );
			
			cout<<ans<<"\n";
			
			if( n > m ){
				
				for(int i=n;i>=1;i--){
					
					for(int j=1;j<=m;j++) if( a[j][i] == 1 ) cout<<"-";
					else cout<<"+";
					
					cout<<"\n";
					
				}
				
			}
			else{
				
				for(int i=1;i<=n;i++){
					
					for(int j=1;j<=m;j++) if(a[i][j] == 1) cout<<"+";
					else cout<<"-";
					
					cout<<"\n";
					
				}
				
			}
			
		}
		else{
			
			f(n,m);
			
			cout<<ans<<"\n";
			
			for(int i=1;i<=n;i++){
				
				for(int j=1;j<=m;j++) if(a[i][j] == 1) cout<<"+";
				else cout<<"-";
				
				cout<<"\n";
				
			}
			
		}
		
		
	}
	
}

/*
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*/

Compilation message (stderr)

stones.cpp: In function 'void f(unsigned int, unsigned int)':
stones.cpp:38:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=1;i<=k;i++)
              ~^~~
stones.cpp:39:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int j=1;j<=m;j++) a[i][j] = 0;
              ~^~~
stones.cpp:42:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=1;i<=k;i++) v.push_back( {0,i} );
              ~^~~
stones.cpp:44:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=1;i<=m;i++){
              ~^~~
stones.cpp:51:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int j=0;j<v.size();j++){
               ~^~~~~~~~~
stones.cpp: In function 'int main()':
stones.cpp:91:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
      for(int j=1;j<=m;j++) if( a[j][i] == 1 ) cout<<"-";
                  ~^~~
stones.cpp:101:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=1;i<=n;i++){
                 ~^~~
stones.cpp:103:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
      for(int j=1;j<=m;j++) if(a[i][j] == 1) cout<<"+";
                  ~^~~
stones.cpp:119:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for(int i=1;i<=n;i++){
                ~^~~
stones.cpp:121:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int j=1;j<=m;j++) if(a[i][j] == 1) cout<<"+";
                 ~^~~

• Subtask 1: 0 / 17
• Subtask 2: 0 / 10
• Subtask 3: 0 / 16
• Subtask 4: 0 / 11
• Subtask 5: 0 / 15
• Subtask 6: 0 / 31