Compilare: user.cpp: In function ‘int main()’: user.cpp:61:34: warning: large integer implicitly truncated to unsigned type [-Woverflow] c[stop.x][stop.y] = NMAX*NMAX+10; ~~~~~~~~~^~~ user.cpp:50:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("padure.in", "r", stdin); ^ user.cpp:51:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("padure.out", "w", stdout); ^ user.cpp:52:83: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%hi %hi %hi %hi %hi %hi", &n, &m, &start.x, &start.y, &stop.x, &stop.y); ^ user.cpp:57:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%hi", &x); ^