Compilare: user.cpp: In function ‘long long int solve1()’: user.cpp:73:36: warning: integer overflow in expression [-Woverflow] long long ansg = (1ll << 63) - 1, ans; ^ user.cpp:72:15: warning: variable ‘l’ set but not used [-Wunused-but-set-variable] int i, j, l, k, o, partial; ^ user.cpp: In function ‘long long int solve2()’: user.cpp:142:26: warning: integer overflow in expression [-Woverflow] ansg = (1ll << 63) - 1; ^ user.cpp: In function ‘int main()’: user.cpp:217:9: warning: unused variable ‘i’ [-Wunused-variable] int i; ^ user.cpp:220:55: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("infinitepatternmatching.in", "r", stdin); ^ user.cpp:221:57: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("infinitepatternmatching.out", "w", stdout); ^ user.cpp:223:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%s", b); ^