Compilare: main.cpp: In function 'int main()': main.cpp:12:31: warning: unused variable 'cst' [-Wunused-variable] long long n , k , i , j , cst , p , sol=0 , mini , cnt; ^~~ main.cpp:12:37: warning: unused variable 'p' [-Wunused-variable] long long n , k , i , j , cst , p , sol=0 , mini , cnt; ^ main.cpp:13:34: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%lld%lld",&n,&k); ^ main.cpp:15:34: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%lld",&v[i]); ^