Compilare: user.cpp: In function ‘int main()’: user.cpp:18: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp: In function ‘void solve()’: user.cpp:32: warning: missing braces around initializer for ‘char [1005]’ user.cpp:38: warning: comparison between signed and unsigned integer expressions user.cpp:28: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result In file included from /usr/include/string.h:640, from user.cpp:3: In function ‘char* strcpy(char*, const char*)’, inlined from ‘void write()’ at user.cpp:59: /usr/include/bits/string3.h:107: warning: call to char* __builtin___strcpy_chk(char*, const char*, unsigned int) will always overflow destination buffer