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my_spaceship.c
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my_spaceship.c
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define MAX 30
char* my_spaceship(char* param_1) {
int x = 0;
int y = 0;
char initial[6];
strcpy(initial, "up");
char* formal = malloc(2 * MAX + 10);
for(int i = 0; param_1[i] != '\0'; i++) {
if (param_1[i] == 'R') {
if (strcmp(initial, "up") == 0) {
strcpy(initial, "right");
} else if (strcmp(initial, "right") == 0) {
strcpy(initial, "down");
} else if (strcmp(initial, "down") == 0) {
strcpy(initial, "left");
} else if (strcmp(initial, "left") == 0) {
strcpy(initial, "up");
}
} else if (param_1[i] == 'L') {
if (strcmp(initial, "up") == 0) {
strcpy(initial, "left");
} else if (strcmp(initial, "left") == 0) {
strcpy(initial, "down");
} else if (strcmp(initial, "down") == 0) {
strcpy(initial, "right");
} else if (strcmp(initial, "right") == 0) {
strcpy(initial, "up");
}
} else if (param_1[i] == 'A') {
if (strcmp(initial, "up") == 0) {
y--;
} else if (strcmp(initial, "down") == 0) {
y++;
} else if (strcmp(initial, "left") == 0) {
x--;
} else if (strcmp(initial, "right") == 0) {
x++;
}
}
}
for (int i = 0; param_1[i] != '\0'; i++) {
if (param_1[i] != 'R' && param_1[i] != 'L' && param_1[i] != 'A') {
free(formal);
return NULL;
}
}
sprintf(formal, "{x: %d, y: %d, direction: '%s'}", x, y, initial);
return formal;
}