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  1. #include <bits/stdc++.h>
  2. #define lb lower_bound
  3. #define pii pair<ll,ll>
  4. #define fi first
  5. #define ll long long
  6. #define se second
  7. #define ios ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
  8. #define op freopen
  9. #define sz size
  10. #define TXT "test"
  11. #define freo if(fopen(TXT".inp","r")){op(TXT".inp","r",stdin);op(TXT".out","w",stdout);}
  12.  
  13. using namespace std;
  14.  
  15. ll n, m, k, a[100005], b[100005];
  16. ll rmq[100005][18], lg[100005];
  17.  
  18. void setup()
  19. {
  20.     lg[1] = 0;
  21.     for (ll i = 2; i <= n; ++i)
  22.     {
  23.         lg[i] = lg[i / 2] + 1;
  24.     }
  25.     for (ll i = 1; i <= n; ++i)
  26.     {
  27.         rmq[i][0] = a[i];
  28.     }
  29.     for (ll j = 1; (1 << j) <= n; ++j)
  30.     {
  31.         for (ll i = 1; i + (1 << j) - 1 <= n; ++i)
  32.         {
  33.             rmq[i][j] = min(rmq[i][j - 1], rmq[i + (1 << (j - 1))][j - 1]);
  34.         }
  35.     }
  36. }
  37.  
  38. ll query(ll l, ll r)
  39. {
  40.     ll j = lg[r - l + 1];
  41.     return min(rmq[l][j], rmq[r - (1 << j) + 1][j]);
  42. }
  43. main()
  44. {
  45.     ios;
  46.     freo;
  47.     cin >> n >> m >> k;
  48.     for (ll i = 1; i <= n; ++i)
  49.         cin >> a[i];
  50.     for (ll i = 1; i <= m; ++i)
  51.         cin >> b[i];
  52.     sort(b + 1, b + 1 + m);
  53.     for (ll i = 1; i <= n; ++i)
  54.     {
  55.         auto it = lb(b + 1, b + 1 + m, a[i]);
  56.         if (it == b + 1 + m) --it;
  57.         a[i] = abs(*it - a[i]);
  58.     }
  59.     setup();
  60.     while (k--)
  61.     {
  62.         ll l, r;
  63.         cin >> l >> r;
  64.         cout << query(l, r) << "\n";
  65.     }
  66. }
  67.  
Success #stdin #stdout 0s 5328KB
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https://ideone.com/cbXJ0G
language:
C++ (gcc 8.3)
created:
14 days ago
visibility:
public

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