Compilare: user.cpp: In function ‘int main()’: user.cpp:36:31: warning: narrowing conversion of ‘c’ from ‘int’ to ‘short int’ inside { } [-Wnarrowing] v.push_back({c,b,d,-1}); ^ user.cpp:36:31: warning: narrowing conversion of ‘b’ from ‘int’ to ‘short int’ inside { } [-Wnarrowing] user.cpp:36:31: warning: narrowing conversion of ‘d’ from ‘int’ to ‘short int’ inside { } [-Wnarrowing] user.cpp:37:30: warning: narrowing conversion of ‘a’ from ‘int’ to ‘short int’ inside { } [-Wnarrowing] v.push_back({a,b,d,1}); ^ user.cpp:37:30: warning: narrowing conversion of ‘b’ from ‘int’ to ‘short int’ inside { } [-Wnarrowing] user.cpp:37:30: warning: narrowing conversion of ‘d’ from ‘int’ to ‘short int’ inside { } [-Wnarrowing] user.cpp:41:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<v.size()&&v[i].x<=n;i++) ^ user.cpp:45:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=i+1;j<v.size()&&v[i].x==v[j].x;j++) ^ user.cpp:28:13: warning: unused variable ‘k’ [-Wunused-variable] int i,j,k,r,ok,nr=0,start,a,b,c,d; ^ user.cpp:28:15: warning: unused variable ‘r’ [-Wunused-variable] int i,j,k,r,ok,nr=0,start,a,b,c,d; ^ user.cpp:28:17: warning: unused variable ‘ok’ [-Wunused-variable] int i,j,k,r,ok,nr=0,start,a,b,c,d; ^ user.cpp:28:25: warning: unused variable ‘start’ [-Wunused-variable] int i,j,k,r,ok,nr=0,start,a,b,c,d; ^ user.cpp:30:32: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d%d",&l,&n,&m); ^ user.cpp:33:41: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d%d%d",&a,&b,&c,&d); ^