Compilare: main.cpp: In function 'void solve()': main.cpp:56:21: warning: format '%u' expects argument of type 'unsigned int*', but argument 2 has type 'long long unsigned int*' [-Wformat=] scanf("%ull", &x); ^ main.cpp:57:21: warning: format '%u' expects argument of type 'unsigned int*', but argument 2 has type 'long long unsigned int*' [-Wformat=] scanf("%ull", &y); ^ main.cpp:56:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%ull", &x); ^ main.cpp:57:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%ull", &y); ^ main.cpp: In function 'int main()': main.cpp:68:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("eqset.in", "r", stdin); ^ main.cpp:69:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("eqset.out", "w", stdout); ^ main.cpp:72:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &t); ^