Submission #211747

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
211747	2020-03-21 06:48:15	Lawliet	Regions (IOI09_regions)	C++17	70 / 100	8048 ms	131076 KiB

regions

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#include <bits/stdc++.h>
using namespace std;
typedef long long int lli;
typedef pair<int,int> pii;
const int MAXN = 200010;
class FenwickTree
{
  public:
    void update(int i, int v)
    {
      for( ; i < MAXN ; i += i & -i )
        BIT[i] += v;
    }
    int query(int i)
    {
      int ans = 0;
      for( ; i > 0 ; i -= i & -i )
        ans += BIT[i];
      return ans;
    }
    int sum(int L, int R) { return query(R) - query(L - 1); }
 
 
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Compilation message (stderr)

regions.cpp: In function 'void DFSInit(int)':
regions.cpp:65:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0 ; i < adj[cur].size() ; i++)
                  ~~^~~~~~~~~~~~~~~~~
regions.cpp: In function 'void DFSCalculate(int, int)':
regions.cpp:81:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0 ; i < adj[cur].size() ; i++)
                  ~~^~~~~~~~~~~~~~~~~
regions.cpp: In function 'int lightQuery(int, int)':
regions.cpp:95:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0 ; i < nodes[B].size() ; i++)
                  ~~^~~~~~~~~~~~~~~~~
regions.cpp:100:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0 ; i < nodes[A].size() ; i++)
                  ~~^~~~~~~~~~~~~~~~~
regions.cpp:103:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0 ; i < nodes[B].size() ; i++)
                  ~~^~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/7/cassert:44:0,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:33,
                 from regions.cpp:1:
regions.cpp: In function 'int main()':
regions.cpp:175:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     assert( ansHeavy[ind].size() > B - 1 );
             ~~~~~~~~~~~~~~~~~~~~~^~~~~~~
regions.cpp:181:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     assert( ansHeavy[ind].size() > A - 1 + r );
             ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
regions.cpp:111:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d %d",&n,&r,&q);
  ~~~~~^~~~~~~~~~~~~~~~~~~~~
regions.cpp:118:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&v[1]);
  ~~~~~^~~~~~~~~~~~
regions.cpp:123:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d",&p,&v[i]);
   ~~~~~^~~~~~~~~~~~~~~~~~
regions.cpp:167:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d",&A,&B);
   ~~~~~^~~~~~~~~~~~~~~

• Subtask 1: 15 / 15
• Subtask 2: 55 / 85