Compilare: user.c: In function ‘dijkstra’: user.c:64:36: warning: unused variable ‘v’ [-Wunused-variable] unsigned int i = 0, j = 0, u = 0, v = 0; ^ user.c:64:22: warning: unused variable ‘j’ [-Wunused-variable] unsigned int i = 0, j = 0, u = 0, v = 0; ^ user.c: In function ‘citire’: user.c:43:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf (f, "%u%ld", &n, &m); ^ user.c:46:10: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf (f, "%u%u%d", &x, &y, &z); ^