Compilare: main.c: In function 'main': main.c:25:5: warning: ignoring return value of 'freopen', declared with attribute warn_unused_result [-Wunused-result] freopen(InFile,"r",stdin); ^~~~~~~~~~~~~~~~~~~~~~~~~ main.c:26:5: warning: ignoring return value of 'freopen', declared with attribute warn_unused_result [-Wunused-result] freopen(OutFile,"w",stdout); ^~~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:29:5: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&N,&D); ^~~~~~~~~~~~~~~~~~~ main.c:32:9: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",T+i,P+i); ^~~~~~~~~~~~~~~~~~~~~