Compilare: main.c: In function 'main': main.c:6:5: warning: ignoring return value of 'freopen', declared with attribute warn_unused_result [-Wunused-result] freopen("aranjare.in","r",stdin),freopen("aranjare.out","w",stdout),scanf("%d\n",&n),fgets(s,10003,stdin); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:6:38: warning: ignoring return value of 'freopen', declared with attribute warn_unused_result [-Wunused-result] freopen("aranjare.in","r",stdin),freopen("aranjare.out","w",stdout),scanf("%d\n",&n),fgets(s,10003,stdin); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:6:73: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result] freopen("aranjare.in","r",stdin),freopen("aranjare.out","w",stdout),scanf("%d\n",&n),fgets(s,10003,stdin); ^~~~~~~~~~~~~~~~ main.c:6:90: warning: ignoring return value of 'fgets', declared with attribute warn_unused_result [-Wunused-result] freopen("aranjare.in","r",stdin),freopen("aranjare.out","w",stdout),scanf("%d\n",&n),fgets(s,10003,stdin); ^~~~~~~~~~~~~~~~~~~~