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Submission #402656

# Submission time Handle Problem Language Result Execution time Memory
402656 2021-05-12T08:07:54 Z keta_tsimakuridze Red-blue table (IZhO19_stones) C++14
0 / 100
 212 ms 1428 KB 
#include<bits/stdc++.h>
#define f first
//#define int long long
#define s second
#define pii pair<int,int>
using namespace std;
const int N=1e3+5,mod=1e9+7;
int t,n,m;
char a[N][N];
set<pii> s;
 main(){
	// t=1;
	cin >> t;
	while(t--){
		cin>>n>>m;
		s.clear();
		for(int i=1;i<=m;i++) s.insert({0,i});
		int B = m;
		int ans = B,cnt=0;
		for(int i=1;i<=n;i++){
			for(int j=1;j<=m;j++) a[i][j]='-';
		}
		for(int i=1;i<=n;i++){
			for(int j=1;j<=m/2+1;j++) {
				pii c = *s.begin();
				s.erase(c);
				s.insert({c.f+1,c.s});
				if(c.f+1==n/2+1) B--;
			}
			if(i+B>ans) ans=i+B,cnt=i;
		}
		cout<<ans<<endl;
		s.clear();
		for(int i=1;i<=m;i++) s.insert({0,i});
		for(int i=1;i<=cnt;i++){
			for(int j=1;j<=m/2+1;j++) {
				pii c = *s.begin();
				s.erase(c);
				s.insert({c.f+1,c.s}); a[i][c.s] = '+';
				if(c.f+1==n/2+1) B--;
			}
		
		
		}	
		for(int i=1;i<=n;i++){
		
		for(int j=1;j<=m;j++) 
		cout<<a[i][j];
		cout<<endl;
		}
	}
}

Compilation message

stones.cpp:11:2: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   11 |  main(){
      |  ^~~~

Subtask #1
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Incorrect 1 ms 204 KB in the table A+B is not equal to 2

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 11 ms 304 KB in the table A+B is not equal to 2

Subtask #3
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Incorrect 1 ms 204 KB in the table A+B is not equal to 2

Subtask #4
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 212 ms 1368 KB Wrong answer in test 97 21: 112 < 116
2 Halted 0 ms 0 KB -

Subtask #5
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 193 ms 1428 KB in the table A+B is not equal to 46
2 Halted 0 ms 0 KB -

Subtask #6
0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Incorrect 1 ms 204 KB in the table A+B is not equal to 2