Compilare: user.cpp: In function ‘void decompPerm(int)’: user.cpp:43:17: warning: unused variable ‘j’ [-Wunused-variable] int j = 0, crt = p[i]; ^ user.cpp: In function ‘void readA(int)’: user.cpp:25:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &a[i]); ^ user.cpp: In function ‘void readP(int)’: user.cpp:32:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &p[i]); ^ user.cpp: In function ‘int main()’: user.cpp:74:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^