Compilare: user.cpp: In function ‘void citire()’: user.cpp:118:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n", &n); ^ user.cpp:124:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d ", &mat_init[i][j]); ^ user.cpp:127:14: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("\n"); ^ user.cpp: In function ‘int main()’: user.cpp:141:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("alpin.in", "r", stdin); ^ user.cpp:142:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("alpin.out", "w", stdout); ^ user.cpp: In function ‘void solve()’: user.cpp:113:30: warning: ‘j_start’ may be used uninitialized in this function [-Wmaybe-uninitialized] parcurgere(i_start, j_start); ^ user.cpp:113:30: warning: ‘i_start’ may be used uninitialized in this function [-Wmaybe-uninitialized]