Compilare: user.cpp: In function ‘void Lee()’: user.cpp:58:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(ii=0;ii<V[i0].size();ii++) ^ user.cpp:39:13: warning: unused variable ‘inc’ [-Wunused-variable] int i,j,inc,sf,ii,jj,i0,j0,v0,cv0,dv; ^ user.cpp:39:17: warning: unused variable ‘sf’ [-Wunused-variable] int i,j,inc,sf,ii,jj,i0,j0,v0,cv0,dv; ^ user.cpp:39:23: warning: unused variable ‘jj’ [-Wunused-variable] int i,j,inc,sf,ii,jj,i0,j0,v0,cv0,dv; ^ user.cpp: In function ‘void read()’: user.cpp:13:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("zmeu2.in","r",stdin); ^ user.cpp:14:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d\n",&n,&p,&k); ^ user.cpp:16:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&d[i],&c[i]); ^ user.cpp:22:28: 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 solve()’: user.cpp:101:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("zmeu2.out","w",stdout); ^