Compilare: user.cpp: In function ‘int main()’: user.cpp:17:10: warning: statement has no effect [-Wunused-value] for(i;i<n;i++){ ^ user.cpp:16:40: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%lld%lld%lld",&c,&n,&k); ^ user.cpp:18:39: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%lld",&v[i+start]); ^ user.cpp:13:21: warning: ‘i’ may be used uninitialized in this function [-Wmaybe-uninitialized] long long c,n,k,i,minim; ^