Compilare: user.c: In function ‘Dijkstra’: user.c:104:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j,poz_curenta=1,cost[50005],vizitat[50005]; ^ user.c: In function ‘main’: user.c:154:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d", &n, &m); ^ user.c:163:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d%d", &x ,&y, &length); ^