Submission #27171

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
27171	2017-07-09 19:00:44	topology	트리 (KOI16_tree)	C++14	100 / 100	789 ms	54928 KiB

tree

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#include <bits/stdc++.h>
#ifdef TOPOLOGY
#define debug(...) fprintf(stderr, __VA_ARGS__)
#else
#define debug(...)
#endif
using namespace std;
struct fenwick {
  vector<int> tree;
  int n;
  fenwick(int n_){
    n = n_;
    tree.resize(n+1);
  }
  void upd(int i){
    assert(i);
    while (i <= n){
      tree[i]++;
      i += i&-i;
    }
  }
  int sum(int i){
    int res = 0;
    while (i){
      res += tree[i];
      i -= i&-i;
    }
    return res;
  }
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

tree.cpp: In function 'int main()':
tree.cpp:110:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &n, &q);
                       ^
tree.cpp:113:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &u);
                  ^
tree.cpp:125:30: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d%d", &b, &c, &d);
                              ^

• Subtask 1: 9 / 9
• Subtask 2: 13 / 13
• Subtask 3: 14 / 14
• Subtask 4: 19 / 19
• Subtask 5: 45 / 45