結果

問題 No.659 徘徊迷路
ユーザー tailstails
提出日時 2018-03-03 00:14:43
言語 C
(gcc 12.3.0)
結果
AC  
実行時間 56 ms / 2,000 ms
コード長 926 bytes
コンパイル時間 496 ms
コンパイル使用メモリ 31,360 KB
実行使用メモリ 6,944 KB
最終ジャッジ日時 2024-06-23 00:39:40
合計ジャッジ時間 1,757 ms
ジャッジサーバーID
（参考情報） 		judge2 / judge4
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テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 6 ms
6,816 KB
testcase_01 AC 16 ms
6,940 KB
testcase_02 AC 46 ms
6,940 KB
testcase_03 AC 46 ms
6,940 KB
testcase_04 AC 46 ms
6,940 KB
testcase_05 AC 8 ms
6,944 KB
testcase_06 AC 12 ms
6,944 KB
testcase_07 AC 12 ms
6,940 KB
testcase_08 AC 19 ms
6,944 KB
testcase_09 AC 50 ms
6,944 KB
testcase_10 AC 53 ms
6,940 KB
testcase_11 AC 54 ms
6,940 KB
testcase_12 AC 9 ms
6,944 KB
testcase_13 AC 46 ms
6,940 KB
testcase_14 AC 46 ms
6,940 KB
testcase_15 AC 56 ms
6,944 KB
testcase_16 AC 54 ms
6,940 KB
権限があれば一括ダウンロードができます
コンパイルメッセージ
main.c:1:1: warning: data definition has no type or storage class
    1 | r;c;t;
      | ^
main.c:1:1: warning: type defaults to 'int' in declaration of 'r' [-Wimplicit-int]
main.c:1:3: warning: data definition has no type or storage class
    1 | r;c;t;
      |   ^
main.c:1:3: warning: type defaults to 'int' in declaration of 'c' [-Wimplicit-int]
main.c:1:5: warning: data definition has no type or storage class
    1 | r;c;t;
      |     ^
main.c:1:5: warning: type defaults to 'int' in declaration of 't' [-Wimplicit-int]
main.c:2:1: warning: data definition has no type or storage class
    2 | sy;sx;
      | ^~
main.c:2:1: warning: type defaults to 'int' in declaration of 'sy' [-Wimplicit-int]
main.c:2:4: warning: data definition has no type or storage class
    2 | sy;sx;
      |    ^~
main.c:2:4: warning: type defaults to 'int' in declaration of 'sx' [-Wimplicit-int]
main.c:3:1: warning: data definition has no type or storage class
    3 | gy;gx;
      | ^~
main.c:3:1: warning: type defaults to 'int' in declaration of 'gy' [-Wimplicit-int]
main.c:3:4: warning: data definition has no type or storage class
    3 | gy;gx;
      |    ^~
main.c:3:4: warning: type defaults to 'int' in declaration of 'gx' [-Wimplicit-int]
main.c:7:1: warning: data definition has no type or storage class
    7 | y;x;v;u;j;i;
      | ^
main.c:7:1: warning: type defaults to 'int' in declaration of 'y' [-Wimplicit-int]
main.c:7:3: warning: data definition has no type or storage class
    7 | y;x;v;u;j;i;
      |   ^
main.c:7:3: warning: type defaults to 'int' in declaration of 'x' [-Wimplicit-int]
main.c:7:5: warning: data definition has no type or storage class
    7 | y;x;v;u;j;i;
      |     ^
main.c:7:5: warning: type defaults to 'int' in declaration of 'v' [-Wimplicit-int]
main.c:7:7: warning: data definition has no type or storage class
    7 | y;x;v;u;j;i;
      |       ^
main.c:7:7: warning: type defaults to 'int' in declaration of 'u' [-Wimplicit-int]
main.c:7:9: warning: data defi

ソースコード

diff # 

r;c;t;
sy;sx;
gy;gx;
char b[10][12];
typedef double mtx[100][100];
mtx m,n,e;
y;x;v;u;j;i;

mul(mtx a){
	memcpy(n,m,sizeof n);
	for(y=0;y<100;++y){
		for(v=0;v<100;++v){
			m[y][v]=0;
			for(j=0;j<100;++j){
				m[y][v]+=n[y][j]*a[j][v];
			}
		}
	}
}

f(l){
	if(l>1){
		f(l>>1);
		mul(n);
	}
	if(l&1){
		mul(e);
	}
}

main(){
	scanf("%d%d%d ",&r,&c,&t);
	scanf("%d%d ",&sy,&sx);
	scanf("%d%d ",&gy,&gx);
	for(y=0;y<r;++y){
		gets(b[y]);
	}

	for(y=1;y<r-1;++y){
		for(x=1;x<c-1;++x){
			int k=0;
			k+=b[y-1][x]=='.';
			k+=b[y+1][x]=='.';
			k+=b[y][x-1]=='.';
			k+=b[y][x+1]=='.';
			if(k){
				double p=1./k;
				if(b[y-1][x]=='.') e[y*10+x][(y-1)*10+x]=p;
				if(b[y+1][x]=='.') e[y*10+x][(y+1)*10+x]=p;
				if(b[y][x-1]=='.') e[y*10+x][y*10+(x-1)]=p;
				if(b[y][x+1]=='.') e[y*10+x][y*10+(x+1)]=p;
			}else{
				e[y*10+x][y*10+x]=1;
			}
			m[y*10+x][y*10+x]=1;
		}
	}

	f(t);
	printf("%.9f\n",m[sy*10+sx][gy*10+gx]);
}
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