POJ2632-Crashing Robots(模拟)
题目详情点此查看
花了近一个小时,总算是AC了,
其实这题比较简单,没啥算法,题目详情点击链接;
主要由以下事项:
1.我用的是二维数组,然后其(0, 0)点的位置与直角坐标系的远点位置恰好相反,因此处理数据时要特别注意。
2.最后提交时还出现了了WA, 然后一检查,我的天呐,我尽然把OK写成了小写的。。。。。。。
code:
//***************
//memory time
// 288K 16MS
#include <iostream>
#include <fstream>
using namespace std;
class Pos{
public:
int x, y, d; //robot的位置信息, d为方向,0, 1, 2, 3对应东北西南
};
int direction[4][2] = {0, 1, -1, 0, 0, -1, 1, 0}; //此数组记录方向,方便运算
Pos pos[102];
int main() {
//ifstream in("data2632.in");
int k;
cin >> k;
while(k --) {
int map[101][101] = {0};
int A, B, N, M;
cin >> B >> A >> N >> M;
for (int i = 1; i <= N; i ++) {
int x, y;
char d;
cin >> y >> x >> d;
map[A- x + 1][y] = i;
pos[i].x = A - x + 1;
pos[i].y = y;
switch(d) {
case 'E':
pos[i].d = 0;
break;
case 'N':
pos[i].d = 1;
break;
case 'W':
pos[i].d = 2;
break;
case 'S':
pos[i].d = 3;
break;
}
}
bool ok = true;
while (M --) {
int num, times;
char action;
cin >> num >> action >> times;
if(action == 'F' && ok) {
while(times --) {
int x = pos[num].x;
int y = pos[num].y;
pos[num].x += direction[pos[num].d][0];
pos[num].y += direction[pos[num].d][1];
map[x][y] = 0;
x = pos[num].x;
y = pos[num].y;
if(x < 1 || y < 1 || x > A || y > B) {
cout << "Robot " << num << " crashes into the wall" << endl;
//M = 0;
ok = false;
break;
}
else if(map[x][y] != 0) {
cout << "Robot " << num << " crashes into robot " << map[x][y] << endl;
//M = 0;
ok = false;
break;
}
else {
map[x][y] = num;
}
}
}
else {
times %= 4;
pos[num].d += 4;
if(action == 'L') {
pos[num].d += times;
}
else {
pos[num].d -= times;
}
pos[num].d %= 4;
}
}
if(ok) {
cout << "OK" << endl;
}
}
return 0;
}
附加测试数据:
Sample Input
8
5 4
2 2
1 1 E
5 4 W
1 F 7
2 F 7
5 4
2 4
1 1 E
5 4 W
1 F 3
2 F 1
1 L 1
1 F 3
5 4
2 2
1 1 E
5 4 W
1 L 96
1 F 2
5 4
2 3
1 1 E
5 4 W
1 F 4
1 L 1
1 F 20
9 5
5 19
2 4 E
4 3 N
6 2 E
9 5 S
9 1 W
4 F 1
4 R 1
4 F 6
4 L 5
4 F 3
4 L 1
5 R 1
5 F 3
5 L 1
5 F 2
5 L 1
5 F 3
5 R 5
5 F 2
5 R 1
5 F 2
4 F 2
4 L 1
4 F 3
9 5
2 6
9 5 S
9 1 W
1 F 1
1 R 1
1 F 2
2 F 2
2 R 1
2 F 3
5 4
2 2
1 1 E
5 4 W
1 R 1
1 F 2
5 4
2 2
1 1 E
5 4 W
1 L 1
1 F 2
Sample Output
Robot 1 crashes into the wall
Robot 1 crashes into robot 2
OK
Robot 1 crashes into robot 2
Robot 4 crashes into robot 5
Robot 2 crashes into robot 1
Robot 1 crashes into the wall
OK

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