Compilare: user.cpp: In function ‘void GetNumber(int&)’: user.cpp:15:50: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] if(poz==DIM_P)fread(buffer,1,DIM_P,stdin),poz=0; ^ user.cpp:20:50: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] if(poz==DIM_P)fread(buffer,1,DIM_P,stdin),poz=0; ^ user.cpp: In function ‘void ReadData()’: user.cpp:25:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] {scanf("%d %d",&n,&m); ^ user.cpp: In function ‘int main()’: user.cpp:61:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] {freopen("gminmax.in","r",stdin); ^