Compilare: main.cpp: In function 'int main()': main.cpp:78:34: warning: format '%lf' expects argument of type 'double*', but argument 5 has type 'i64* {aka long double*}' [-Wformat=] fscanf(in, "%d%d%lf", &n, &k, &S); ^ main.cpp:78:35: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d%d%lf", &n, &k, &S); ^ main.cpp:81:28: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", val + i); ^