Compilare: main.c: In function 'main': main.c:8:2: warning: ignoring return value of 'freopen', declared with attribute warn_unused_result [-Wunused-result] freopen("edist.in","r",stdin),freopen("edist.out","w",stdout),scanf("%d%d%d\n",&n,&m,&k); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:8:32: warning: ignoring return value of 'freopen', declared with attribute warn_unused_result [-Wunused-result] freopen("edist.in","r",stdin),freopen("edist.out","w",stdout),scanf("%d%d%d\n",&n,&m,&k); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:8:64: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result] freopen("edist.in","r",stdin),freopen("edist.out","w",stdout),scanf("%d%d%d\n",&n,&m,&k); ^~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:10:8: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result] scanf("%c",s+i); ^~~~~~~~~~~~~~~ main.c:11:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result] scanf("\n"); ^~~~~~~~~~~ main.c:13:8: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result] scanf("%c",t+i); ^~~~~~~~~~~~~~~ main.c:14:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result] scanf("\n"),a=A,b=B; ^~~~~~~~~~~