Compilare: main.cpp: In function 'int main()': main.cpp:16:38: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d %d %d", &n, &p, &k) ; ^ main.cpp:18:33: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d %d", &x, &y) ; ^ main.cpp:30:18: warning: 'sol' may be used uninitialized in this function [-Wmaybe-uninitialized] sol ++ ; ^