Compilare: main.cpp: In function 'int main()': main.cpp:49:30: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &n, &k); ^ main.cpp:51:29: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &v[i]); ^ main.cpp: In function 'int cautbin(int, int, int, int)': main.cpp:41:10: warning: 'sol' may be used uninitialized in this function [-Wmaybe-uninitialized] return sol; ^~~