输入长度大于1

Question

我试图解决该问题，并且细分错误不断发生，我已经发布了问题，但是有人关闭了该问题，并给了我没有任何帮助的建议。它要么什么都不做，要么给我分段错误。相同的方法在C ++和Python中有效，但在C中执行时会出错。例如，如果我在输入x = 3，y = 4，方向= N，指令= A后给出它，则应返回3,5 N，但它什么也不做，返回3,4，N。如果我给出了多个步骤，则会给我带来细分错误。我浏览了该网站，但似乎找不到解决方案。在此先感谢:)

int x ;
int y ;
int d;
char *direction; //edited in, I left it out when posting originally but it was in the code
char *instructions[100] ; 
scanf("%d", &x) ;
scanf("%d", &y) ;
scanf("%s", &direction) ; //I get char input for direction but then need to change it to int to   get d
scanf("%s", instructions) ;


\\And here is the problematic part of the code:
int l = strlen(&instructions);
for (int i = 0; i < l; i++){
    if (strcmp(instructions[i],"L") == 0){
        d = d - 1 ;
    }
    else if (strcmp(instructions[i],"R") == 0){
        d = d + 1 ;
    }
    else if (strcmp(instructions[i],"A") == 0 && (d % 4 == 0) && (y - 1 > -1)){
        y = y - 1 ;
    }
    else if (strcmp(instructions[i],"A") == 0 && (d % 4 == 3) && (x - 1 > -1)){
        x = x - 1 ;
    }
    else if (strcmp(instructions[i],"A") == 0 && (d % 4 == 2)){
        y = y + 1 ;
    }
    else if (strcmp(instructions[i],"A") == 0 && (d % 4 == 1)){
        x = x + 1 ;
    }
    else {
        continue;
    };
    };