Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:252:5: error: ‘out’ was not declared in this scope out << sol << "\n"; ^ user.cpp:201:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("pscpld2d.in", "r", stdin); ^ user.cpp:204:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n", &N); ^ user.cpp:205:40: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread( str, 1, Nmax * Nmax, stdin ); ^