Time
时间： 1ms 内存：128M
描述：
Digital clock use 4 digits to express time, each digit is described by 3*3 characters (including”|”,”_”and” “).now given the current time, please tell us how can it be expressed by the digital clock.
输入：
There are several test cases.
Each case contains 4 integers in a line, separated by space.
Proceed to the end of file.
输出：
For each test case, output the time expressed by the digital clock such as Sample Output.
示例输入：
1 2 5 6
2 3 4 2示例输出：
_ _ _
| _||_ |_
||_ _||_|
_ _ _
_| _||_| _|
|_ _| ||_
提示：
参考答案（内存最优[800]）：
#include <stdio.h>
int t[10][3][3]=
{
//0
{
{' ', '_', ' '},
{'|', ' ', '|'},
{'|', '_', '|'}
},
//1
{
{' ', ' ', ' '},
{' ', ' ', '|'},
{' ', ' ', '|'},
},
//2
{
{' ','_',' '},
{' ','_','|'},
{'|','_',' '},
},
//3
{
{' ','_',' '},
{' ','_','|'},
{' ','_','|'},
},
//4
{
{' ',' ',' '},
{'|','_','|'},
{' ',' ','|'},
},
//5
{
{' ','_',' '},
{'|','_',' '},
{' ','_','|'},
},
//6
{
{' ','_',' '},
{'|','_',' '},
{'|','_','|'},
},
//7
{
{' ','_',' '},
{' ',' ','|'},
{' ',' ','|'},
},
//8
{
{' ','_',' '},
{'|','_','|'},
{'|','_','|'},
},
//9
{
{' ','_',' '},
{'|','_','|'},
{' ','_','|'},
},
};
int main()
{
//freopen("in.in","r",stdin);
//freopen("out.out","w",stdout);
int a[4];
int i,j,k;
while(scanf("%d %d %d %d",&a[0], &a[1],&a[2],&a[3]) != EOF)
{
for(i=0; i<3; ++i)
{
for(j=0; j<4; ++j)
{
for(k=0;k<3; ++k)
{
printf("%c", t[a[j]][i][k]);
}
}
printf("\n");
}
}
}
参考答案（时间最优[0]）：
//1004
#include <iostream>
#include <string>
#include <map>
#include <cmath>
#include <stdio.h>
#define N 1010
using namespace std;
int a, b, c;
int n;
string arr_b[N];
int main()
{
while (scanf("%d %d %d", &a, &b, &c)==3)
{
map<string, int> hasha;
for (int i = 0; i < a; i++)
{
string sa;
cin >> sa;
hasha[sa] = 1;
}
for (int i = 0; i < b; i++)
cin >> arr_b[i];
map<string, int> hashc;
for (int i = 0; i < c; i++)
{
string sc;
cin >> sc;
hashc[sc] = 1;
}
int first = 1;
for (int i = 0; i < b; i++)
{
if (hasha[arr_b[i]]==1 && hashc[arr_b[i]]==0)
{
if (!first)
cout << ' ';
else
first = 0;
cout << arr_b[i];
}
}
if (!first)
cout << endl;
else
cout << "No enemy spy" << endl;
}
return 0;
}
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