#include #include "testlib.h" #pragma GCC target("avx2") #pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") using std::cin; using std::cout; using std::endl; using std::vector; using ll = long long; #define rep(i,j,k) for(int i=int(j); i P(N); rep(i, 0, N){ ll k = inf.readInt(MIN_N, MAX_N); if (i < N-1) inf.readSpace(); else inf.readEoln(); P[i] = k; } vector sum(N+1), rev(N, -1); rep(i,0,N){ sum[i+1] = sum[i]+P[i]; rev[--P[i]] = i; } std::set set; set.insert(-1); set.insert(N); rep(i,0,N){ assert(rev[i] != -1); ll A = inf.readLong(MIN_N, MAX_A); if (i < N-1) inf.readSpace(); else { inf.readEoln(); } auto itr = set.lower_bound(rev[i]); ll right = *itr; itr--; ll left = *itr; ll ans = 0; if(right-rev[i] < rev[i]-left){ rep(r,rev[i],right){ //右端固定 ll l = std::lower_bound(sum.begin(),sum.end(),sum[r+1]-A)-sum.begin(); //left < l ≤ rev[i] を満たす必要がある l = std::max(l, left+1); l = std::min(l, rev[i]+1); ans += rev[i]-l+1; } } else{ REP(l,left+1,rev[i]){ //左端固定 ll r = std::upper_bound(sum.begin(),sum.end(),sum[l]+A)-sum.begin()-2; //rev[i] ≤ r < right を満たす必要がある r = std::min(r, right-1); r = std::max(r, rev[i]-1); ans += r-rev[i]+1; } } cout << ans << "\n"; set.insert(rev[i]); } sort(P.begin(), P.end()); rep(i,0,N) assert(P[i] == i); inf.readEof(); }