Compilare: user.cpp: In function ‘int pt3(int)’: user.cpp:7:9: warning: unused variable ‘pt’ [-Wunused-variable] int pt = 0, r, num = 0, k=0; ^ user.cpp: In function ‘int pt5(int)’: user.cpp:17:9: warning: unused variable ‘pt’ [-Wunused-variable] int pt = 0, r, num = 0, k=0; ^ user.cpp: In function ‘int main()’: user.cpp:29:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("puteri35.in", "r", stdin); ^ user.cpp:30:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("puteri35.out", "w", stdout); ^ user.cpp:31:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^