#include <bits/stdc++.h> using namespace std; int n, i, j, l, r; int a[100005]; int b[100005]; int c[100005]; int v[100005]; int seg[400020]; bool lazy[400020]; int dp[5005]; void Update(int from, int to, int start=0, int ende=n-1, int indx=1) { if (lazy[indx]) return; if (from == start && to == ende) { seg[indx] = to-from+1; lazy[indx] = true; return; } int mid = (start+ende)/2; if (to <= mid) Update(from, to, start, mid, 2*indx); else if (from > mid) Update(from, to, mid+1, ende, 2*indx+1); else { Update(from, mid, start, mid, 2*indx); Update(mid+1, to, mid+1, ende, 2*indx+1); } seg[indx] = seg[2*indx]+seg[2*indx+1]; } int main() { scanf("%d", &n); for (i=0; i < n; ++i) scanf("%d", &a[i]); for (i=0; i < n; ++i) scanf("%d", &b[i]); for (i=0; i < n; ++i) { if (a[i] == b[0]) { for (l=i; l-1 >= 0 && a[l-1]<a[i]; --l); for (r=i; r+1 < n && a[r+1]<a[i]; ++r); Update(l, r); } } printf("%d\n", seg[1]); return 0; }

exam.cpp: In function 'int main()':
exam.cpp:32:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   32 |   scanf("%d", &n);
      |   ~~~~~^~~~~~~~~~
exam.cpp:33:30: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   33 |   for (i=0; i < n; ++i) scanf("%d", &a[i]);
      |                         ~~~~~^~~~~~~~~~~~~
exam.cpp:34:30: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   34 |   for (i=0; i < n; ++i) scanf("%d", &b[i]);
      |                         ~~~~~^~~~~~~~~~~~~