Compilare: user.cpp: In function ‘int count(char*, int)’: user.cpp:56:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < strlen(number); i++) ^ user.cpp: In function ‘int main()’: user.cpp:83:7: warning: unused variable ‘line’ [-Wunused-variable] char line[1500]; ^ user.cpp:91:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] int T; scanf("%d", &T); ^ user.cpp:95:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%s", &k, number); ^