Compilare: user.cpp: In function ‘int count(char*, int)’: user.cpp:55:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < strlen(number); i++) ^ user.cpp:62:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i == strlen(number) / 2) ^ user.cpp:64:48: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(number[i] == '1' || i == strlen(number) - 1) ^ user.cpp: In function ‘int main()’: user.cpp:80:7: warning: unused variable ‘line’ [-Wunused-variable] char line[1500]; ^ user.cpp:88:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] int T; scanf("%d", &T); ^ user.cpp:92:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%s", &k, number); ^