#include "grader.h"
void Rescue(int R, int C, int RS, int CS, int X) {
for (int k=0;k<4;k++){
int x,y,dx1,dy1,dx2,dy2;
if (k == 0){
x = RS; y = 1;
dx1 = 0; dy1 = 1;
dx2 = -1; dy2 = 0;
}
else if (k == 1){
x = 1; y = CS;
dx1 = 1; dy1 = 0;
dx2 = 0; dy2 = 1;
}
else if (k == 2){
x = RS; y = C;
dx1 = 0; dy1 = -1;
dx2 = 1; dy2 = 0;
}
else if (k == 3){
x = R; y = CS;
dx1 = -1; dy1 = 0;
dx2 = 0; dy2 = -1;
}
while (1){
if (k == 0){
if (x < 1 || y > CS) break;
}
else if (k == 1){
if (x > RS || y > C) break;
}
else if (k == 2){
if (x > R || y < CS) break;
}
else{
if (x < RS || y < 1) break;
}
int u = Measure(x,y);
if (u == X){
Pinpoint(x,y);
return;
}
if (u < X) x += dx1, y += dy1;
else x += dx2, y += dy2;
}
}
}
