Submission #145156

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
145156	2019-08-18 22:54:15	tincamatei	Railway (BOI17_railway)	C++14	100 / 100	170 ms	26024 KiB

railway

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#include <bits/stdc++.h>
using namespace std;
const int MAX_N = 100000;
const int MAX_K = 50000;
vector<int> graph[1+MAX_N];
vector<int> updates[1+MAX_N];
int lim[MAX_K], subtree[1+MAX_N];
struct SubTreeCnt {
  int cnt[MAX_K];
  int active;
  vector<int> history;
  SubTreeCnt() {
    for(int i = 0; i < MAX_K; ++i)
      cnt[i] = 0;
    active = 0;
  }
  void clear() {
    for(auto it: history)
      cnt[it]--;
    active = 0;
    history.clear();
  }
  void insert(int x) {
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

railway.cpp: In function 'int main()':
railway.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, &m, &k);
  ~~~~~^~~~~~~~~~~~~~~~~~~~~~
railway.cpp:113:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d", &a, &b);
   ~~~~~^~~~~~~~~~~~~~~~
railway.cpp:120:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &s);
   ~~~~~^~~~~~~~~~
railway.cpp:122:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    scanf("%d", &a);
    ~~~~~^~~~~~~~~~

• Subtask 1: 8 / 8
• Subtask 2: 15 / 15
• Subtask 3: 7 / 7
• Subtask 4: 29 / 29
• Subtask 5: 16 / 16
• Subtask 6: 25 / 25