Compilare: user.cpp: In function ‘int main()’: user.cpp:81:27: warning: unused variable ‘capacitate’ [-Wunused-variable] int node1, node2, capacitate , cost; ^ user.cpp:69:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("terenuri3d.in","r",stdin); ^ user.cpp:70:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("terenuri3d.out","w",stdout); ^ user.cpp:72:38: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d", &n, &m, &edges); ^ user.cpp:82:49: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d", &node1, &node2, &cost); ^