Compilare: user.cpp: In function ‘void dijkstra()’: user.cpp:63:44: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < v[nod.x].size (); ++i) ^ user.cpp:69:36: warning: statement has no effect [-Wunused-value] tMin[fiu.x][fiu.c] > fiu.t; ^ user.cpp: In function ‘int main()’: user.cpp:85:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("zmeu2.in", "r", stdin); ^ user.cpp:86:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("zmeu2.out", "w", stdout); ^ user.cpp:90:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d%d%d", &n, &p, &k); ^ user.cpp:94:37: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d%d", &d[i], &c[i]); ^ user.cpp:103:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d%d", &x, &y); ^