45pts WA+RE求助大佬

#include <bits/stdc++.h>
using namespace std;
char c[105][105];
int wox, woy, pos; // pos: ^1 >2 v3 <4
void changepos() {
	if (pos == 1) c[wox][woy] = '^';
	if (pos == 2) c[wox][woy] = '>';
	if (pos == 3) c[wox][woy] = 'v';
	if (pos == 4) c[wox][woy] = '<';
}
void go1(int x, int y) { // up
	if (x == 0 || y == 0 || x == 9 || y == 9) return ;
	if (c[x - 1][y] != '.') {
		go1(x - 1, y);
	}
	c[x - 1][y] = c[x][y];
	c[x][y] = '.';
}
void go2(int x, int y) { // right
	if (x == 0 || y == 0 || x == 9 || y == 9) return ;
	if (c[x][y + 1] != '.' && c[x - 1][y] != ' ') {
		go2(x, y + 1);
	}
	c[x][y + 1] = c[x][y];
	c[x][y] = '.';
}
void go3(int x, int y) { // down
	if (x == 0 || y == 0 || x == 9 || y == 9) return ;
	if (c[x + 1][y] != '.' && c[x + 1][y] != ' ') {
		go3(x + 1, y);
	}
	c[x + 1][y] = c[x][y];
	c[x][y] = '.';
}
void go4(int x, int y) { // left
	if (x == 0 || y == 0 || x == 9 || y == 9) return ;
	if (c[x][y - 1] != '.' && c[x][y - 1] != ' ') {
		go4(x, y - 1);
	}
	c[x][y - 1] = c[x][y];
	c[x][y] = '.';
}
void _move(int stp) {
	if (pos == 1) {
		for (int i = 1; i <= stp; i ++) {
			go1(wox, woy);
			wox --;
			if (wox == 1) break;
		}
	}
	if (pos == 2) {
		for (int i = 1; i <= stp; i ++) {
			go2(wox, woy);
			woy ++;
			if (woy == 8) break;
		}
	}
	if (pos == 3) {
		for (int i = 1; i <= stp; i ++) {
			go3(wox, woy);
			wox ++;
			if (wox == 8) break;
		}
	}
	if (pos == 4) {
		for (int i = 1; i <= stp; i ++) {
			go4(wox, woy);
			woy --;
			if (woy == 1) break;
		}
	}
}
int main() {
	for (int i = 1; i <= 8; i ++) {
		for (int j = 1; j <= 8; j ++) {
			cin >> c[i][j];
			if (c[i][j] == '^') wox = i, woy = j, pos = 1;
			if (c[i][j] == '>') wox = i, woy = j, pos = 2;
			if (c[i][j] == 'v') wox = i, woy = j, pos = 3;
			if (c[i][j] == '<') wox = i, woy = j, pos = 4;
		}
	}
	string s;
	while (cin >> s && s != "#") {
		if (s == "move") {
			int step;
			cin >> step;
			_move(step);
		}
		if (s == "turn") {
			string poss;
			cin >> poss;
			if (poss == "left") {
				if (pos == 1) pos = 4;
				else pos --;
			}
			if (poss == "right") {
				if (pos == 4) pos = 1;
				else pos ++;
			}
			if (poss == "back") {
				if (pos == 1) pos = 3;
				if (pos == 3) pos = 1;
				if (pos == 2) pos = 4;
				if (pos == 4) pos = 2;
			}
		}
		changepos();
	}
	for (int i = 1; i <= 8; i ++) {
		for (int j = 1; j <= 8; j ++) {
			cout << c[i][j];
		}
		cout << endl;
	}
	return 0;
}