Compilare: user.cpp: In function ‘int main()’: user.cpp:39:29: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘LL {aka long long unsigned int}’ [-Wformat=] fprintf( g, "%d\n", rez ); ^ user.cpp: In function ‘void Solve()’: user.cpp:84:11: warning: unused variable ‘j’ [-Wunused-variable] LL i, j; ^ user.cpp: In function ‘void Next()’: user.cpp:58:34: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] std::fread(r, 1, MAXR, f); ^