题解 | #坐标移动#

思路明确,注意代码规范

#include <bits/stdc++.h>
using namespace std;
void zbyd(int& j, int& k, char c, int m) {
	if (c == 'A') j -= m;
	if (c == 'S') k -= m;
	if (c == 'W') k += m;
	if (c == 'D') j += m;
}
int main () {
	string str;
	cin >> str;
	vector<char> rec;
	vector<int> nums;
	for (int i = 0; i < str.size(); i++) {
		if ((str[i] == 'A' || str[i] == 'S' || str[i] == 'W' || str[i] == 'D') && (i == 0 || str[i - 1] == ';')) {
			int j = i;
			while (str[j] != ';') {
				j++;
			}
			//cout << j;
			if (j - i <= 3 && j - i >= 2) {
				if (j - i == 3) {
					if ((str[i + 1] >= '1' && str[i + 1] <= '9') && (str[i + 2] >= '0' && str[i + 2] <= '9')) {
						int num;
						rec.push_back(str[i]);
						num = (str[i + 1] - '0') * 10 + str[i + 2] - '0';
						nums.push_back(num);
					}
					i += 2;
				}
				if (j - i == 2) {
					if (str[i + 1] >= '1' && str[i + 1] <= '9') {
						int num;
						rec.push_back(str[i]);
						num = str[i + 1] - '0';
						nums.push_back(num);
					}
					i += 1;
				}
				else {
					while (++i && i < str.size()) {
						if (str[i] == ';')
						break;
					}
				}
			}
		}
	}
	int x = 0, y = 0;
	for (int i = 0; i < rec.size(); i++) {
		zbyd(x, y, rec[i], nums[i]);
	}
	cout << x << ',' << y << endl;
	return 0;
}