Submission #217538

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
217538	2020-03-30 07:49:01	arnold518	Teleporters (IOI08_teleporters)	C++14	100 / 100	999 ms	48336 KiB

teleporters

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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
const int MAXN = 2e6;
int N, M;
pii A[MAXN+10];
int adj[MAXN+10];
bool vis[MAXN+10];
int main()
{
  int i, j;
  scanf("%d%d", &N, &M);
  for(i=1; i<=N; i++) scanf("%d%d", &A[i].first, &A[i].second);
  vector<int> comp;
  for(i=1; i<=N; i++) comp.push_back(A[i].first), comp.push_back(A[i].second);
  sort(comp.begin(), comp.end());
  memset(adj, -1, sizeof(adj));
  for(i=1; i<=N; i++)
  {
    int a=lower_bound(comp.begin(), comp.end(), A[i].first)-comp.begin(), b=lower_bound(comp.begin(), comp.end(), A[i].second)-comp.begin();
 
 
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Compilation message (stderr)

teleporters.cpp: In function 'int main()':
teleporters.cpp:18:9: warning: unused variable 'j' [-Wunused-variable]
  int i, j;
         ^
teleporters.cpp:20:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &N, &M);
  ~~~~~^~~~~~~~~~~~~~~~
teleporters.cpp:21:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(i=1; i<=N; i++) scanf("%d%d", &A[i].first, &A[i].second);
                      ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 5 / 5
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• Subtask 20: 5 / 5