ll n,m;intdu[N];inlinellread(){ ll sum =0, ff =1;charc = getchar();while(c<'0'|| c>'9') {if(c=='-') ff =-1; c = getchar(); }while(c>='0'&&c<='9') { sum = sum *10+ c -'0'; c = getchar(); }returnsum * ff; }intmain(){intans; n = read();...
ll n,m;intdu[N];inlinellread(){ ll sum =0, ff =1;charc = getchar();while(c<'0'|| c>'9') {if(c=='-') ff =-1; c = getchar(); }while(c>='0'&&c<='9') { sum = sum *10+ c -'0'; c = getchar(); }returnsum * ff; }intmain(){intans; n = read();...