题解 | #坐标移动#

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

int main() {
    int coord[2] = {0};
    char ch;
    int count = 0;
    char str[3] = {0};
    int signal = 0;
    char last;

    while ((ch = getchar()) != '\n')
    {
        last = ch;
        if ((ch != 'A') && (ch != 'D') && (ch != 'W') && (ch != 'S'))
        {
            if (last == ';')
            {
                continue;
            }
            while ((ch = getchar()) != ';');
            //continue;
        }
        if (ch == 'A')
        {
            while ((ch = getchar()) != ';')
            {
                if (ch < '0' || ch > '9' || count > 3)
                {
                    count = 0;
                    memset(str, 0, sizeof(str));
                    signal = 1;
                    break;
                }
                str[count++] = ch;
            }
            if (signal == 1)
            {
                signal = 0;
                continue;
            }
            int num = 0;
            num = atoi(str);
            coord[0] -= num;
            count = 0;
            memset(str, 0, sizeof(str));
            continue;
        }

        if (ch == 'D')
        {
            while ((ch = getchar()) != ';')
            {
                if (ch < '0' || ch > '9' || count > 3)
                {
                    count = 0;
                    memset(str, 0, sizeof(str));
                    signal = 1;
                    break;
                }
                str[count++] = ch;
            }
            if (signal == 1)
            {
                signal = 0;
                continue;
            }
            int num = 0;
            num = atoi(str);
            coord[0] += num;
            count = 0;
            memset(str, 0, sizeof(str));
            continue;
        }

        if (ch == 'W')
        {
            while ((ch = getchar()) != ';')
            {
                if (ch < '0' || ch > '9' || count > 3)
                {
                    count = 0;
                    memset(str, 0, sizeof(str));
                    signal = 1;
                    break;
                }
                str[count++] = ch;
            }
            if (signal == 1)
            {
                signal = 0;
                continue;
            }
            int num = 0;
            num = atoi(str);
            coord[1] += num;
            count = 0;
            memset(str, 0, sizeof(str));
            continue;
        }

        if (ch == 'S')
        {
            while ((ch = getchar()) != ';')
            {
                if (ch < '0' || ch > '9' || count > 3)
                {
                    count = 0;
                    memset(str, 0, sizeof(str));
                    signal = 1;
                    break;
                }
                str[count++] = ch;
            }
            if (signal == 1)
            {
                signal = 0;
                continue;
            }
            int num = 0;
            num = atoi(str);
            coord[1] -= num;
            count = 0;
            memset(str, 0, sizeof(str));
            continue;
        }
        
    }
    printf("%d,", coord[0]);
    printf("%d", coord[1]);
    return 0;
}