Compilare: user.cpp: In function ‘int swap(int&, int&)’: user.cpp:12:64: warning: no return statement in function returning non-void [-Wreturn-type] inline int swap(int &a, int &b) { int aux = a; a = b; b = aux; } ^ user.cpp: In function ‘void read()’: user.cpp:16:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &N, &K); ^ user.cpp: In function ‘int main()’: user.cpp:32:24: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen(inf,"r",stdin); freopen(outf,"w",stdout); ^ user.cpp:32:50: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen(inf,"r",stdin); freopen(outf,"w",stdout); ^