題目:
https://onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=3&page=show_problem&problem=54
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| #include <iostream>
#include <sstream>
using namespace std;
bool scent[51][51] = {false};
int main(){
ios::sync_with_stdio(false);
cin.tie(nullptr);
int border_x, border_y;
cin >> border_x >> border_y;
int x, y;
char face, act;
int facedeg;
bool lost;
string str;
while(cin >> x >> y >> face >> ws){
cin >> str;
lost = false;
facedeg = 0;
switch(face){
case 'N': facedeg += 0; break;
case 'E': facedeg += 90; break;
case 'S': facedeg += 180; break;
case 'W': facedeg += 270; break;
}
stringstream ss(str);
while(ss >> act){
if(lost) break;
switch(act){
case 'L':{
facedeg = (facedeg-90+360)%360;
break;
}
case 'R':{
facedeg = (facedeg+90) %360;
break;
}
case 'F':{
int prev_x = x, prev_y = y;
if(facedeg == 0) ++y;
else if(facedeg == 90) ++x;
else if(facedeg == 180) --y;
else if(facedeg == 270) --x;
if(x > border_x || x < 0 || y > border_y || y < 0){
if(scent[prev_x][prev_y]){
x = prev_x;
y = prev_y;
}
else{
scent[prev_x][prev_y] = true;
lost = true;
x = prev_x;
y = prev_y;
}
}
break;
}
}
}
if(facedeg == 0) face = 'N';
else if(facedeg == 90) face = 'E';
else if(facedeg == 180) face = 'S';
else if(facedeg == 270) face = 'W';
cout << x << ' ' << y << ' ' << face << (lost ? " LOST\n" : "\n");
}
return 0;
}
|
