Compilare: user.cpp: In function ‘int main()’: user.cpp:61:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("concurs2.in","r", stdin); ^ user.cpp:62:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("concurs2.out" ,"w", stdout); ^ user.cpp:63:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ user.cpp:65:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&x,&y); ^ user.cpp: In function ‘void rezolva()’: user.cpp:43:61: warning: ‘l2’ may be used uninitialized in this function [-Wmaybe-uninitialized] else if(Max[i]==m2&&a[aux[i]][j[i]]<a[aux[l2]][j[l2]]) ^ user.cpp:37:61: warning: ‘l1’ may be used uninitialized in this function [-Wmaybe-uninitialized] else if(Max[i]==m1&&a[aux[i]][j[i]]<a[aux[l1]][j[l1]]){ ^