Submission #21916

#	Time	Username	Problem	Language	Result	Execution time	Memory
21916		sampriti	Gap (APIO16_gap)	C++14	70 / 100	96 ms	7456 KiB

gap

#include "gap.h"

#include <climits>
#include <vector>

using namespace std;

long long findGap(int T, int N) {
  long long L, R;
  MinMax(0, LLONG_MAX, &L, &R);
  long long diff = ((R - L - 1) + (N - 2))/(N - 1);

  vector<pair<long long, long long> > cands;
  cands.push_back({L, L});
  for(long long x = L + 1; x <= R - 1; x += diff) {
    long long qL, qR;
    MinMax(x, min(x + diff - 1, R - 1), &qL, &qR);
    if(qL != -1) cands.push_back({qL, qR});
  }
  cands.push_back({R, R});

  long long ans = 0;
  for(int i = 1; i < cands.size(); i++) {
    ans = max(ans, cands[i].first - cands[i - 1].second);
  }
  return ans;
}

Compilation message (stderr)

gap.cpp: In function 'long long int findGap(int, int)':
gap.cpp:23:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int i = 1; i < cands.size(); i++) {
                    ^

• Subtask 1: 0 / 30
• Subtask 2: 70 / 70