Compilare: user.cpp: In function ‘int main()’: user.cpp:36:10: warning: unused variable ‘mf’ [-Wunused-variable] bool mf=true; ^ user.cpp:45:9: warning: unused variable ‘j’ [-Wunused-variable] int j, poz, poz1=1, pm; ^ user.cpp:31:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("kbetray.in", "r", stdin); ^ user.cpp:32:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("kbetray.out", "w", stdout); ^ user.cpp:35:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &n, &k); ^ user.cpp:39:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &a, &b); ^ user.cpp:74:31: warning: ‘pm’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(vc[i]>abs(vm[pm])) ^