Submission #569428

#TimeUTC-0UsernameProblemLanguageResultExecution timeMemory
5694282022-05-27 11:43:5679brueTeleporters (IOI08_teleporters)C++17
0 / 100
865 ms25832 KiB
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
int n, k, len;
int nxt[2000002];
bool visited[2000002];
int l[1000002], r[1000002];
vector<int> vec;
int base;
int main(){
scanf("%d %d", &n, &k);
for(int i=1; i<=n; i++){
scanf("%d %d", &l[i], &r[i]);
vec.push_back(l[i]), vec.push_back(r[i]);
}
sort(vec.begin(), vec.end());
len = n*2;
for(int i=0; i<len; i++) nxt[i] = i+1;
for(int i=1; i<=n; i++){
l[i] = lower_bound(vec.begin(), vec.end(), l[i]) - vec.begin() + 1;
r[i] = lower_bound(vec.begin(), vec.end(), r[i]) - vec.begin() + 1;
nxt[l[i]-1] = r[i];
nxt[r[i]-1] = l[i];
}
nxt[len] = 0;
vec.clear();
 
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Compilation message (stderr)

teleporters.cpp: In function 'int main()':
teleporters.cpp:15:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |     scanf("%d %d", &n, &k);
      |     ~~~~~^~~~~~~~~~~~~~~~~
teleporters.cpp:17:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   17 |         scanf("%d %d", &l[i], &r[i]);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~
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