#include #include #define rep(i,b) for(int i=0;i=0;i--) #define rep1(i,b) for(int i=1;i using mpq = priority_queue, greater>; template bool chmax(T &a, const T &b) { if (a bool chmin(T &a, const T &b) { if (b ll sumv(const vector&a){ll res(0);for(auto&&x:a)res+=x;return res;} bool yn(bool a) { if(a) {cout << "Yes" << endl; return 1;} else {cout << "No" << endl; return 0;}} #define dame { cout << "No" << endl; return 0;} #define dame1 { cout << -1 << endl; return 0;} #define test(x) cout << "test" << x << endl; #define deb(x,y) cout << x << " " << y << endl; #define deb3(x,y,z) cout << x << " " << y << " " << z << endl; #define deb4(x,y,z,x2) cout << x << " " << y << " " << z << " " << x2 << endl; #define out cout << ans << endl; #define outv fore(yans , ans) cout << yans << "\n"; #define show(x) cerr<<#x<<" = "<; using pil = pair; using pli = pair; using pii = pair; using tp = tuple; using vi = vector; using vl = vector; using vs = vector; using vb = vector; using vpii = vector; using vpli = vector; using vpll = vector; using vpil = vector; using vvi = vector>; using vvl = vector>; using vvs = vector>; using vvb = vector>; using vvpii = vector>; using vvpli = vector>; using vvpll = vector; using vvpil = vector; using mint = modint998244353; using vm = vector; using vvm = vector>; vector dx={1,0,-1,0,1,1,-1,-1},dy={0,1,0,-1,1,-1,1,-1}; ll gcd(ll a, ll b) { return a?gcd(b%a,a):b;} ll lcm(ll a, ll b) { return a/gcd(a,b)*b;} const double eps = 1e-10; const ll LINF = 1001002003004005006ll; const int INF = 1001001001; int main(){ int n; cin>>n; vl a(n),b(n); rep(i,n) cin>>a[i]; rep(i,n) cin>>b[i]; vvl sum(2,vl(n)); vl pariv(n); int parity = 0; rep(i,n){ if (i == 0){ if (b[i] == 1) parity = 1; sum[parity][0] = 1; }else{ sum[0][i] = sum[0][i-1]; sum[1][i] = sum[1][i-1]; if (b[i] == 1) parity ^= 1; sum[parity][i]++; } pariv[i] = parity; } ll nowp=0,nowx=0; ll ri = 0; vl ansv(n); rep(i,n){ if (i == 0){ nowp = a[i]; nowx = a[i]; }else{ nowp -= a[i-1]; nowx ^= a[i-1]; } while(nowp == nowx && ri < n-1){ ri++; nowp += a[ri]; nowx ^= a[ri]; } if (nowp != nowx){ nowp -= a[ri]; nowx ^= a[ri--]; } if (ri == n-1){ repx(j,i,n) ansv[j] = n-1; break; } ansv[i] = ri; } // showv(ansv); ll ans = 0; rep(i,n){ int parity = pariv[i]; if (b[i] == 1) parity ^= 1; // show(i); // deb3(ansv[i] , sum[parity][ansv[i]] , sum[parity][i-1]); // cout << sum[parity][ansv[i]] - sum[parity][i-1] << endl; ans += sum[parity][ansv[i]]; if (i != 0) ans -= sum[parity][i-1]; // if (i != 0) ans -= sum[parity][i-1]; // if (b[i] == 1) ans--; } out; return 0; }