Submission #1174543


Source Code Expand

#include <bits/stdc++.h>
using namespace std;
char stage[501][501];
int n;
int countblackcol(){
	int res=0;
	for (int x = 0; x < n; ++x)
	{
		int y;
		for (y = 0; y < n; ++y)
		{
			if(stage[y][x]=='.') break;
		}
		if(y==n) res++;
	}
	return res;
}
int searchrow(){
	//黒一行を作るまでの回数の最小を調べる
	int minv = n+1;
	for (int y = 0; y < n; ++y)
	{
		int v = 0;
		int ty;
		//塗りつぶし開始までの準備
		for (ty = 0; ty < n; ++ty)
		{
			if(stage[ty][y]=='#') break;
		}
		if(ty == n) v=1;
		//塗りつぶす個数
		for (int x = 0; x < n; ++x)
		{
			if(stage[y][x]=='.') v++;
		}
		//行動回数が最小のものを残す
		if(minv > v){
			minv = v;
		}
		
	}
	return minv;
}
int main(){
	// freopen("in.txt","r",stdin);
	cin >> n;
	for (int i = 0; i < n; ++i)
	{
		scanf("%s",stage[i]);
	}
	//どこに張り付けたとしても縦一列にはならない
	//つまり初めに縦一列黒なものから増えない
	int ans = searchrow();
	if(ans==n+1){
		cout << "-1" << endl;
		return 0;
	}
	//縦一列黒ではない個数を調べる
	ans += n - countblackcol();
	cout << ans << endl;
	//横一列すべて黒にするまでにかかる最小試行数
	

	return 0;
}

Submission Info

Submission Time
Task B - Row to Column
User ajinori
Language C++14 (GCC 5.4.1)
Score 1300
Code Size 1284 Byte
Status AC
Exec Time 2 ms
Memory 512 KB

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:49:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%s",stage[i]);
                       ^

Judge Result

Set Name Sample Subtask All
Score / Max Score 0 / 0 300 / 300 1000 / 1000
Status
AC × 5
AC × 20
AC × 43
Set Name Test Cases
Sample 0_00.txt, 0_01.txt, 0_02.txt, 0_03.txt, 0_04.txt
Subtask 0_00.txt, 0_01.txt, 0_02.txt, 0_03.txt, 0_04.txt, 1_00.txt, 1_01.txt, 1_02.txt, 1_03.txt, 1_04.txt, 1_05.txt, 1_06.txt, 1_07.txt, 1_08.txt, 1_09.txt, 1_10.txt, 1_11.txt, 1_12.txt, 1_13.txt, 1_14.txt
All 0_00.txt, 0_01.txt, 0_02.txt, 0_03.txt, 0_04.txt, 1_00.txt, 1_01.txt, 1_02.txt, 1_03.txt, 1_04.txt, 1_05.txt, 1_06.txt, 1_07.txt, 1_08.txt, 1_09.txt, 1_10.txt, 1_11.txt, 1_12.txt, 1_13.txt, 1_14.txt, 2_00.txt, 2_01.txt, 2_02.txt, 2_03.txt, 2_04.txt, 2_05.txt, 2_06.txt, 2_07.txt, 2_08.txt, 2_09.txt, 2_10.txt, 2_11.txt, 2_12.txt, 2_13.txt, 2_14.txt, 2_15.txt, 2_16.txt, 2_17.txt, 2_18.txt, 2_19.txt, 2_20.txt, 2_21.txt, 2_22.txt
Case Name Status Exec Time Memory
0_00.txt AC 1 ms 256 KB
0_01.txt AC 1 ms 256 KB
0_02.txt AC 1 ms 256 KB
0_03.txt AC 1 ms 256 KB
0_04.txt AC 1 ms 256 KB
1_00.txt AC 1 ms 256 KB
1_01.txt AC 1 ms 256 KB
1_02.txt AC 1 ms 256 KB
1_03.txt AC 1 ms 256 KB
1_04.txt AC 1 ms 256 KB
1_05.txt AC 1 ms 256 KB
1_06.txt AC 1 ms 256 KB
1_07.txt AC 1 ms 256 KB
1_08.txt AC 1 ms 256 KB
1_09.txt AC 1 ms 256 KB
1_10.txt AC 1 ms 256 KB
1_11.txt AC 1 ms 256 KB
1_12.txt AC 1 ms 256 KB
1_13.txt AC 1 ms 256 KB
1_14.txt AC 1 ms 256 KB
2_00.txt AC 2 ms 512 KB
2_01.txt AC 2 ms 512 KB
2_02.txt AC 2 ms 512 KB
2_03.txt AC 2 ms 512 KB
2_04.txt AC 2 ms 512 KB
2_05.txt AC 2 ms 512 KB
2_06.txt AC 2 ms 512 KB
2_07.txt AC 2 ms 384 KB
2_08.txt AC 2 ms 512 KB
2_09.txt AC 2 ms 512 KB
2_10.txt AC 2 ms 512 KB
2_11.txt AC 2 ms 512 KB
2_12.txt AC 2 ms 512 KB
2_13.txt AC 2 ms 512 KB
2_14.txt AC 2 ms 512 KB
2_15.txt AC 2 ms 512 KB
2_16.txt AC 2 ms 512 KB
2_17.txt AC 2 ms 512 KB
2_18.txt AC 2 ms 384 KB
2_19.txt AC 2 ms 512 KB
2_20.txt AC 2 ms 384 KB
2_21.txt AC 2 ms 384 KB
2_22.txt AC 2 ms 512 KB