Compilare: main.cpp: In function 'int main()': main.cpp:26:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen ("rj.in", "r", stdin); ^ main.cpp:27:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen ("rj.out", "w", stdout); ^ main.cpp:35:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf ("%d%d", &n, &m); ^ main.cpp:44:30: warning: ignoring return value of 'char* fgets(char*, int, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fgets (s, 102, stdin); ^ main.cpp:120:19: warning: 'jy' may be used uninitialized in this function [-Wmaybe-uninitialized] if (mat[jx][jy] == MAX) ~~~~~~~~~~^ main.cpp:120:19: warning: 'jx' may be used uninitialized in this function [-Wmaybe-uninitialized]