Submission #1869103


Source Code Expand

#include<cstdio>
#include<algorithm>
using namespace std;
#define MN 100
char s[MN+5][MN+5];
short R[MN+5][MN+5],C[MN+5][MN+5],f[MN+5][MN+5][MN+5][MN+5],ans;
void rw(short&a,short b){if(b>a)a=b;}
int qr(int x,int l,int r){return l<=r?R[x][r]-R[x][l-1]:0;}
int qc(int x,int l,int r){return l<=r?C[r][x]-C[l-1][x]:0;}
int main()
{
	int n,m,i,j,x,y,a,b,c,d;
	scanf("%d%d",&n,&m);
	for(i=1;i<=n;++i)
	{
		scanf("%s",s[i]+1);
		for(j=1;j<=m;++j)
		{
			if(s[i][j]=='E')x=i,y=j;
			R[i][j]=R[i][j-1]+(s[i][j]=='o');
			C[i][j]=C[i-1][j]+(s[i][j]=='o');
		}
	}
	for(a=0;x-a;++a)for(b=0;x+b<=n;++b)for(c=0;y-c;++c)for(d=0;y+d<=m;++d)
	{
		if(x-a-1)rw(f[a+1][b][c][d],f[a][b][c][d]+(x-a-1>b)*qr(x-a-1,max(y-c,d+1),min(y+d,m-c)));
		if(x+b+1<=n)rw(f[a][b+1][c][d],f[a][b][c][d]+(x+b+1<n-a+1)*qr(x+b+1,max(y-c,d+1),min(y+d,m-c)));
		if(y-c-1)rw(f[a][b][c+1][d],f[a][b][c][d]+(y-c-1>d)*qc(y-c-1,max(x-a,b+1),min(x+b,n-a)));
		if(y+d+1<=m)rw(f[a][b][c][d+1],f[a][b][c][d]+(y+d+1<m-c+1)*qc(y+d+1,max(x-a,b+1),min(x+b,n-a)));
		rw(ans,f[a][b][c][d]);
	}
	printf("%d",ans);
}

Submission Info

Submission Time
Task E - Salvage Robots
User ditoly
Language C++14 (GCC 5.4.1)
Score 1400
Code Size 1091 Byte
Status AC
Exec Time 129 ms
Memory 205056 KB

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:13:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d",&n,&m);
                     ^
./Main.cpp:16:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%s",s[i]+1);
                     ^

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 1400 / 1400
Status
AC × 4
AC × 76
Set Name Test Cases
Sample 0_00.txt, 0_01.txt, 0_02.txt, 0_03.txt
All 0_00.txt, 0_01.txt, 0_02.txt, 0_03.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, 1_15.txt, 1_16.txt, 1_17.txt, 1_18.txt, 1_19.txt, 1_20.txt, 1_21.txt, 1_22.txt, 1_23.txt, 1_24.txt, 1_25.txt, 1_26.txt, 1_27.txt, 1_28.txt, 1_29.txt, 1_30.txt, 1_31.txt, 1_32.txt, 1_33.txt, 1_34.txt, 1_35.txt, 1_36.txt, 1_37.txt, 1_38.txt, 1_39.txt, 1_40.txt, 1_41.txt, 1_42.txt, 1_43.txt, 1_44.txt, 1_45.txt, 1_46.txt, 1_47.txt, 1_48.txt, 1_49.txt, 1_50.txt, 1_51.txt, 1_52.txt, 1_53.txt, 1_54.txt, 1_55.txt, 1_56.txt, 1_57.txt, 1_58.txt, 1_59.txt, 1_60.txt, 1_61.txt, 1_62.txt, 1_63.txt, 1_64.txt, 1_65.txt, 1_66.txt, 1_67.txt, 1_68.txt, 1_69.txt, 1_70.txt, 1_71.txt
Case Name Status Exec Time Memory
0_00.txt AC 1 ms 2176 KB
0_01.txt AC 0 ms 128 KB
0_02.txt AC 2 ms 4224 KB
0_03.txt AC 2 ms 4224 KB
1_00.txt AC 1 ms 128 KB
1_01.txt AC 1 ms 128 KB
1_02.txt AC 1 ms 2176 KB
1_03.txt AC 1 ms 2176 KB
1_04.txt AC 1 ms 2688 KB
1_05.txt AC 3 ms 4352 KB
1_06.txt AC 52 ms 203008 KB
1_07.txt AC 52 ms 205056 KB
1_08.txt AC 110 ms 131712 KB
1_09.txt AC 51 ms 133504 KB
1_10.txt AC 14 ms 15104 KB
1_11.txt AC 74 ms 194944 KB
1_12.txt AC 54 ms 52736 KB
1_13.txt AC 32 ms 92544 KB
1_14.txt AC 76 ms 196992 KB
1_15.txt AC 13 ms 7680 KB
1_16.txt AC 79 ms 89088 KB
1_17.txt AC 26 ms 52864 KB
1_18.txt AC 59 ms 190720 KB
1_19.txt AC 69 ms 100992 KB
1_20.txt AC 76 ms 164224 KB
1_21.txt AC 91 ms 174592 KB
1_22.txt AC 77 ms 137728 KB
1_23.txt AC 60 ms 190720 KB
1_24.txt AC 50 ms 194816 KB
1_25.txt AC 54 ms 205056 KB
1_26.txt AC 4 ms 6784 KB
1_27.txt AC 4 ms 8448 KB
1_28.txt AC 51 ms 196864 KB
1_29.txt AC 58 ms 196864 KB
1_30.txt AC 46 ms 176512 KB
1_31.txt AC 52 ms 190720 KB
1_32.txt AC 51 ms 188672 KB
1_33.txt AC 4 ms 6400 KB
1_34.txt AC 52 ms 203008 KB
1_35.txt AC 60 ms 203136 KB
1_36.txt AC 7 ms 16512 KB
1_37.txt AC 1 ms 640 KB
1_38.txt AC 50 ms 194816 KB
1_39.txt AC 6 ms 10368 KB
1_40.txt AC 126 ms 115712 KB
1_41.txt AC 118 ms 115584 KB
1_42.txt AC 100 ms 109312 KB
1_43.txt AC 110 ms 103296 KB
1_44.txt AC 101 ms 97024 KB
1_45.txt AC 119 ms 133888 KB
1_46.txt AC 122 ms 103424 KB
1_47.txt AC 107 ms 105344 KB
1_48.txt AC 110 ms 99328 KB
1_49.txt AC 125 ms 113536 KB
1_50.txt AC 104 ms 105344 KB
1_51.txt AC 110 ms 117504 KB
1_52.txt AC 113 ms 99200 KB
1_53.txt AC 129 ms 117632 KB
1_54.txt AC 115 ms 115456 KB
1_55.txt AC 114 ms 105344 KB
1_56.txt AC 60 ms 54912 KB
1_57.txt AC 104 ms 162432 KB
1_58.txt AC 59 ms 56960 KB
1_59.txt AC 87 ms 164224 KB
1_60.txt AC 93 ms 166272 KB
1_61.txt AC 36 ms 39552 KB
1_62.txt AC 95 ms 166528 KB
1_63.txt AC 87 ms 160384 KB
1_64.txt AC 63 ms 133504 KB
1_65.txt AC 51 ms 48640 KB
1_66.txt AC 83 ms 156416 KB
1_67.txt AC 70 ms 135808 KB
1_68.txt AC 86 ms 158336 KB
1_69.txt AC 76 ms 152192 KB
1_70.txt AC 90 ms 158080 KB
1_71.txt AC 85 ms 158080 KB