Compilare: user.cpp: In function ‘int main()’: user.cpp:27:13: warning: unused variable ‘st’ [-Wunused-variable] int n,m,st,dr,i,j,inc,p; ^ user.cpp:27:16: warning: unused variable ‘dr’ [-Wunused-variable] int n,m,st,dr,i,j,inc,p; ^ user.cpp:28:15: warning: unused variable ‘k’ [-Wunused-variable] long long k; ^ user.cpp: In function ‘bool how(ceva, ceva)’: user.cpp:22:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:30:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d",&n,&m); ^ user.cpp:32:55: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d %d",&v[i].st,&v[i].dr,&v[i].k); ^