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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main()
  5. {
  6.     set<int> v;
  7.     set<int> h;
  8.     set<int>::iterator it;
  9.     multiset<int> v1;
  10.     multiset<int> h1;
  11.     int m1[200005];
  12.     int m2[200005];
  13.     multiset<int>::iterator it1,it2;
  14.     int i;
  15.     int n;
  16.     int l;
  17.     int b;
  18.     int x;
  19.     char c;
  20.     int frst;
  21.     int last;
  22.  
  23.     cin>>b>>l>>n;
  24.     m1[0] = l;
  25.     m2[0] = b;
  26.     v.insert(0);
  27.     h.insert(0);
  28.     v1.insert(b);
  29.     h1.insert(l);
  30.  
  31.     while(n--) {
  32.         scanf(" %c%d",&c,&x);
  33.         if(c == 'H') {
  34.             x = l-x;
  35.             it = lower_bound(h.begin(),h.end(),x);
  36.             //cout<<"sss"<<endl;
  37.             it--;
  38.             frst = *it;
  39.             last = m1[frst];
  40.            // cout<<frst<<' '<<last<<endl;
  41.             h.erase(it);
  42.             //cout<<frst<<' '<<last-x<<' '<<last-x<<' '<<last<<endl;
  43.             h.insert(frst);
  44.             m1[frst] = x;
  45.             h.insert(x);
  46.             m1[x] = last;
  47.             it1 = find(h1.begin(),h1.end(),last-frst);
  48.             h1.erase(it1);
  49.             h1.insert(abs(x-frst));
  50.             h1.insert(abs(last-x));
  51.  
  52.         }
  53.         else {
  54.  
  55.            it = lower_bound(v.begin(),v.end(),x);
  56.             it--;
  57.             frst = *it;
  58.             last = m2[frst];
  59.             //cout<<frst<<' '<<last<<endl;
  60.             v.erase(it);
  61.             //cout<<frst<<' '<<last-x<<' '<<last-x<<' '<<last<<endl;
  62.             v.insert(frst);
  63.             m2[frst] = x;
  64.             v.insert(x);
  65.             m2[x] = last;
  66.             it1 = find(v1.begin(),v1.end(),last-frst);
  67.             v1.erase(it1);
  68.             v1.insert(abs(x-frst));
  69.             v1.insert(abs(last-x));
  70.  
  71.         }
  72.         it1 = v1.end();
  73.         it1--;
  74.         it2 = h1.end();
  75.         it2--;
  76.         printf("%I64d\n",(long long)*it1 * (long long)*it2);
  77.  
  78.     }
  79.  
  80.  
  81.  
  82.  
  83.  
  84.  
  85.  
  86. }
  87.  
Success #stdin #stdout 0s 4920KB
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https://ideone.com/rInosC
language:
C++ (gcc 8.3)
created:
8 years ago
visibility:
public

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