题解 | #坐标移动#

#include <stdio.h>
#include <string.h>

int main() {
    char str[10000] = {0};
    fgets(str, 10002, stdin);
    int way[10000][2] = {0, 0};

    int len = strlen(str);
    int a = 0;
    for (int i = 0; i < len; i++) {
        //  printf("1");
        if (str[i] != ';' && str[i + 1] != ';' && str[i + 2] != ';' &&
                str[i + 3] == ';' && (str[i - 1] == ';' || i == 0)) {
            //printf("1");
            if (str[i] == 'A' && str[i + 1] >= '0' && str[i + 1] <= '9' &&
                    str[i + 2] >= '0' && str[i + 2] <= '9' ) {
                // printf("1");
                way[a][0] = -((str[i + 1] - '0') * 10 + str[i + 2] - '0') ;
                a++;
            } else if (str[i] == 'S' && str[i + 1] >= '0' && str[i + 1] <= '9' &&
                       str[i + 2] >= '0' && str[i + 2] <= '9' ) {
                way[a][1] = -((str[i + 1] - '0') * 10 + str[i + 2] - '0') ;
                a++;
            } else if (str[i] == 'D' && str[i + 1] >= '0' && str[i + 1] <= '9' &&
                       str[i + 2] >= '0' && str[i + 2] <= '9' ) {
                way[a][0] = ((str[i + 1] - '0') * 10 + str[i + 2] - '0') ;
                a++;
            } else if (str[i] == 'W' && str[i + 1] >= '0' && str[i + 1] <= '9' &&
                       str[i + 2] >= '0' && str[i + 2] <= '9' ) {
                way[a][1] = ((str[i + 1] - '0') * 10 + str[i + 2] - '0') ;
                a++;
            } else {
                continue;
            }
        }
        if (str[i] != ';' && str[i + 1] != ';' && str[i + 2] == ';' &&
                (str[i - 1] == ';' || i == 0)) {
            //printf("1");
            if (str[i] == 'A' && str[i + 1] >= '0' && str[i + 1] <= '9') {
                // printf("1");
                way[a][0] = -(str[i + 1] - '0') ;
                a++;
            } else if (str[i] == 'S' && str[i + 1] >= '0' && str[i + 1] <= '9') {
                way[a][1] = -(str[i + 1] - '0') ;
                a++;
            } else if (str[i] == 'D' && str[i + 1] >= '0' && str[i + 1] <= '9') {
                way[a][0] = (str[i + 1] - '0') ;
                a++;
            } else if (str[i] == 'W' && str[i + 1] >= '0' && str[i + 1] <= '9') {
                way[a][1] = (str[i + 1] - '0') ;
                a++;
            } else {
                continue;
            }
        }
    }

    int x = 0, y = 0;
    for (int i = 0; i < a; i++) {
        x += way[i][0];
        y += way[i][1];
    }
    printf("%d,%d", x, y);
    return 0;
}