Submission #171750

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
171750	2019-12-30 09:21:17	Sensei	Strange Device (APIO19_strange_device)	C++17	65 / 100	654 ms	19696 KiB

strange_device

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/*
  DATE:   2019-12-30 11:10:15
  NAME:   
  PROBLEM:  APIO19_strange_device
*/
#include <bits/stdc++.h>
using namespace std;
const int MAXN = 1e6;
const long long LLINF = 1e18 + 100;
class Segment {
public:
  long long l, r;
  Segment() {}
  Segment(long long x, long long y) {
    l = x;
    r = y;
  }
};
long long f(long long x, long long y) {
  if (x / __gcd(x, y + 1) > LLINF / y) {
    return LLINF;
  }
  return x / __gcd(x, y + 1) * y;
}
 
 
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Compilation message (stderr)

strange_device.cpp: In function 'int main()':
strange_device.cpp:69:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i < segments.size(); i++) {
                  ~~^~~~~~~~~~~~~~~~~
strange_device.cpp:44:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld %lld", &segment.l, &segment.r);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 0 / 5
• Subtask 3: 5 / 5
• Subtask 4: 5 / 5
• Subtask 5: 5 / 5
• Subtask 6: 20 / 20
• Subtask 7: 20 / 20
• Subtask 8: 0 / 30