Compilare: user.cpp: In function ‘void Hard_Way(int, int)’: user.cpp:54:20: warning: unused variable ‘k1’ [-Wunused-variable] int Steps = 0, k1, k2, aux; ^ user.cpp:54:24: warning: unused variable ‘k2’ [-Wunused-variable] int Steps = 0, k1, k2, aux; ^ user.cpp:54:28: warning: unused variable ‘aux’ [-Wunused-variable] int Steps = 0, k1, k2, aux; ^ user.cpp: In function ‘int main()’: user.cpp:97:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &T); ^ user.cpp:100:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &N, &K); ^