Compilare: user.c: In function ‘main’: user.c:74:8: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d %d %d", &N, &M, &K); ^ user.c:81:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &nod); ^ user.c:93:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d %d %d", &x, &y, &z); ^ user.c: In function ‘getMin’: user.c:17:2: warning: ‘x’ may be used uninitialized in this function [-Wmaybe-uninitialized] return x; ^ user.c: In function ‘Dijkstra’: user.c:7:9: warning: ‘x’ may be used uninitialized in this function [-Wmaybe-uninitialized] int i, x; ^