Compilare: main.cpp: In function 'int main()': main.cpp:8:28: warning: unused variable 'val' [-Wunused-variable] int n,m,k,i,x,y,vmax,j,val,ind,ant,va; ^~~ main.cpp:8:36: warning: unused variable 'ant' [-Wunused-variable] int n,m,k,i,x,y,vmax,j,val,ind,ant,va; ^~~ main.cpp:10:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("pavare.in","r",stdin); ^ main.cpp:11:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("pavare.out","w",stdout); ^ main.cpp:12:29: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&n,&m,&k); ^ main.cpp:15:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&x,&y); ^