Compilare: main.cpp: In function 'void lee()': main.cpp:47:11: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses] if(door[curr.x][curr.y]) ^ main.cpp:58:15: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses] if(OK(i, j)) ^ main.cpp: In function 'void read()': main.cpp:24:32: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d", &N, &M, &K); ^ main.cpp:25:50: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d", &st.x, &st.y, &dr.x, &dr.y); ^ main.cpp:27:40: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &v[i].x, &v[i].y); ^ main.cpp: In function 'int main()': main.cpp:72:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("poarta.in", "r", stdin); ^ main.cpp:73:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("poarta.out", "w", stdout); ^