Compilare: user.c: In function ‘Dijkstra’: user.c:68:16: warning: unused variable ‘poz_cost_minim’ [-Wunused-variable] int ok=0,i,poz_cost_minim,cost[50001],vizitat[50001],poz_curenta=1,j,min; ^ user.c: In function ‘main’: user.c:109:19: warning: unused variable ‘j’ [-Wunused-variable] int n,m,x,y,i,j,length; ^ user.c:110:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d", &n, &m); ^ user.c:119:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d%d", &x ,&y, &length); ^