2014
01-05

Tetris Comes Back

Working in corporation is toilsome and rest is important. In leisure time, WisKey like to play Tetris. The Tetris game in board is N*5, and there are 8 kinds of blocks.
Look that, red mean the area can’t be place. Other colors mean different kinds of blocks. If I give you C grey blocks (the 1st kind), and other infinite color blocks, Can you fulfil the board without any blocks overlap.

Each case will contain two integers N (1<=N<=1000) and C (0<=C<=100).
N*5 grid follow it. The ‘1’ represent red area, it can’t be place. The ‘0’ represent normal area.
Process cases to end of file.

Each case will contain two integers N (1<=N<=1000) and C (0<=C<=100).
N*5 grid follow it. The ‘1’ represent red area, it can’t be place. The ‘0’ represent normal area.
Process cases to end of file.

1 1
00000
1 1
00100
1 1
01010
4 1
10000
00101
10010
00000

YES
YES
NO
YES

1. 第2题，TCP不支持多播，多播和广播仅应用于UDP。所以B选项是不对的。第2题，TCP不支持多播，多播和广播仅应用于UDP。所以B选项是不对的。

2. #include <stdio.h>
int main()
{
int n,p,t[100]={1};
for(int i=1;i<100;i++)
t =i;
while(scanf("%d",&n)&&n!=0){
if(n==1)
printf("Printing order for 1 pages:nSheet 1, front: Blank, 1n");
else {
if(n%4) p=n/4+1;
else p=n/4;
int q=4*p;
printf("Printing order for %d pages:n",n);
for(int i=0;i<p;i++){
printf("Sheet %d, front: ",i+1);
if(q>n) {printf("Blank, %dn",t[2*i+1]);}
else {printf("%d, %dn",q,t[2*i+1]);}
q–;//打印表前
printf("Sheet %d, back : ",i+1);
if(q>n) {printf("%d, Blankn",t[2*i+2]);}
else {printf("%d, %dn",t[2*i+2],q);}
q–;//打印表后
}
}
}
return 0;
}

3. Thanks for taking the time to examine this, I really feel strongly about it and love studying a lot more on this topic. If possible, as you acquire experience