Submission #196918

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
196918	2020-01-17 16:24:58	tincamatei	Strange Device (APIO19_strange_device)	C++14	100 / 100	1503 ms	100272 KiB

strange_device

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#include <bits/stdc++.h>
using namespace std;
const long long INF = 1LL << 62;
long long gcd(long long a, long long b) {
  long long r;
  while(b > 0) {
    r = a % b;
    a = b;
    b = r;
  }
  return a;
}
set<pair<long long, long long> > ranges;
long long insertRange(long long a, long long b) {
  set<pair<long long, long long> >::iterator it;
  it = ranges.lower_bound(make_pair(a, -INF));
  if(it != ranges.begin()) {
    set<pair<long long, long long> >::iterator it2;
    it2 = it;
    it2--;
    if(it2->second >= a) {
      it--;
 
 
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Compilation message (stderr)

strange_device.cpp: In function 'int main()':
strange_device.cpp:56:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%lld%lld", &n, &A, &B);
  ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
strange_device.cpp:68:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld%lld", &l, &r);
   ~~~~~^~~~~~~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 5 / 5
• Subtask 3: 5 / 5
• Subtask 4: 5 / 5
• Subtask 5: 5 / 5
• Subtask 6: 20 / 20
• Subtask 7: 20 / 20
• Subtask 8: 30 / 30