Compilare: main.cpp: In function 'long long int getSum(long long int)': main.cpp:37:17: warning: statement has no effect [-Wunused-value] for (st ; st < dr ; ++ st) { ^ main.cpp: In function 'int32_t main()': main.cpp:76:13: warning: unused variable 'ans' [-Wunused-variable] int ans = getSum (minSum) ; ^~~ main.cpp:55:42: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (in, "%lld %lld", &n, &k) ; ^ main.cpp:58:55: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (in, "%lld\n", population + i) ; ^