Compilare: main.cpp: In function 'int main()': main.cpp:13:41: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d %d %d", &n, &b, &k); ^ main.cpp:18:38: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d %d", &s, &p); ^ main.cpp:51:9: warning: 'sens' may be used uninitialized in this function [-Wmaybe-uninitialized] if (sens==-1) { ^~