Compilare: user.cpp: In function ‘int main()’: user.cpp:105:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("mostenire.in", "r", stdin); ^ user.cpp:106:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("mostenire.out", "w", stdout); ^ user.cpp:108:43: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d %lld", &N, &K), INF = 1LL << 60; ^ user.cpp:110:37: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d", &v[i]), sum += v[i]; ^ user.cpp: In function ‘void proces(long long int, long long int)’: user.cpp:38:62: warning: ‘ras’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (a[i].v <= mij) cost += mij - a[i].v, a[i].v = mij; ^