Compilare: main.cpp: In function 'int main()': main.cpp:17:28: warning: unused variable 'ind' [-Wunused-variable] int n,m,k,i,x,y,vmax,j,ind,va,act; ^~~ main.cpp:21:35: 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:23:37: 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:25:29: 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:31:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&x,&y); ^