Compilare: user.cpp: In function ‘int Cost(int, int)’: user.cpp:44:9: warning: unused variable ‘i’ [-Wunused-variable] int i, nod; ^ user.cpp: In function ‘void read()’: user.cpp:24:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &x); ^ user.cpp:32:41: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &v[n].x, &v[n].y); ^ user.cpp: In function ‘int main()’: user.cpp:127:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("bibel.in", "r", stdin); ^ user.cpp:128:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("bibel.out", "w", stdout); ^ user.cpp: In function ‘void solve()’: user.cpp:101:16: warning: ‘p’ may be used uninitialized in this function [-Wmaybe-uninitialized] path[1] = p; ^