Compilare: user.cpp: In function ‘void dinamica(int, int)’: user.cpp:67:19: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(valid(t.x,t.y)) ^ user.cpp: In function ‘void read()’: user.cpp:26:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &N); ^ user.cpp:30:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &M[i][j]); ^ user.cpp: In function ‘int main()’: user.cpp:105:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("alpin.in","rt",stdin); ^ user.cpp:106:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("alpin.out","wt",stdout); ^ user.cpp:121:35: warning: ‘jmaxi’ may be used uninitialized in this function [-Wmaybe-uninitialized] reconstituireDrum(imaxi,jmaxi); ^ user.cpp:121:35: warning: ‘imaxi’ may be used uninitialized in this function [-Wmaybe-uninitialized]