Submission #151422

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
151422	2019-09-02 20:05:26	flashmt	Race (IOI11_race)	C++17	100 / 100	569 ms	50540 KiB

race

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#include <bits/stdc++.h>
using namespace std;
const int N = 200200, oo = 1 << 21;
int n, k, h[N][2], l[N], height[N], pos[N], deltaVal[N], st[N], last, curChild[N], par[N];
long long deltaID[N];
vector<pair<int, int>> a[N];
vector<int> order;
map<long long, int> m[N];
int ans = oo;
int unionMap(int u, int v, int c)
{
  int res = oo;
  long long offsetID = c + deltaID[u] + deltaID[v];
  int offsetVal = 1 + deltaVal[u] + deltaVal[v];
  for (auto it : m[v])
    if (m[u].count(k - it.first - offsetID))
      res = min(res, it.second + m[u][k - it.first - offsetID] + offsetVal);
  offsetID = c + deltaID[v] - deltaID[u];
  offsetVal = 1 + deltaVal[v] - deltaVal[u];
  for (auto it : m[v])
    if (!m[u].count(it.first + offsetID) || m[u][it.first + offsetID] > it.second + offsetVal)
      m[u][it.first + offsetID] = it.second + offsetVal;
  m[v].clear();
  return res;
 
 
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Compilation message (stderr)

race.cpp: In function 'int calc(int)':
race.cpp:58:14: warning: 'tmp' may be used uninitialized in this function [-Wmaybe-uninitialized]
   deltaID[u] += tmp;
   ~~~~~~~~~~~^~~~~~

• Subtask 1: 9 / 9
• Subtask 2: 12 / 12
• Subtask 3: 22 / 22
• Subtask 4: 57 / 57