Compilare: user.cpp: In function ‘int main()’: user.cpp:40:52: warning: unused variable ‘cost’ [-Wunused-variable] int left = get<2>(it), right = get<3>(it), cost = get<0>(it), danger = get<1>(it); ^ user.cpp:7:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("politie.in", "r", stdin); ^ user.cpp:8:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("politie.out", "w", stdout); ^