답안 #21918

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
21918 2017-04-27T12:16:38 Z sampriti Gap (APIO16_gap) C++14
70 / 100
89 ms 8220 KB
#include "gap.h"

#include <climits>
#include <vector>
#include <cassert>

using namespace std;

long long findGap(int T, int N) {
  long long L, R;
  MinMax(0, LLONG_MAX, &L, &R);

  if(T == 1) {
    vector<long long> A, B;
    A.push_back(L); B.push_back(R);
    while(true) {
      long long qL, qR;
      MinMax(L + 1, R - 1, &qL, &qR);
      if(qL == -1) break;
      A.push_back(qL); B.push_back(qR);
      if(qL == qR) break;
      L = qL, R = qR;
    }
    A.insert(A.end(), B.rbegin(), B.rend());
    assert(A.size() == N);
    long long ans = 0;
    for(int i = 1; i < N; i++) {
      ans = max(ans, A[i] - A[i - 1]);
    }
    return ans;
  }

  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

In file included from /usr/include/c++/5/cassert:43:0,
                 from gap.cpp:5:
gap.cpp: In function 'long long int findGap(int, int)':
gap.cpp:25:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     assert(A.size() == N);
                     ^
gap.cpp:45:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int i = 1; i < cands.size(); i++) {
                    ^
# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 5060 KB Output isn't correct
2 Runtime error 0 ms 5064 KB Execution killed because of forbidden syscall gettid (186)
3 Runtime error 0 ms 5064 KB Execution killed because of forbidden syscall gettid (186)
4 Runtime error 0 ms 5064 KB Execution killed because of forbidden syscall gettid (186)
5 Runtime error 0 ms 5064 KB Execution killed because of forbidden syscall gettid (186)
6 Incorrect 0 ms 5060 KB Output isn't correct
7 Incorrect 0 ms 5060 KB Output isn't correct
8 Incorrect 0 ms 5060 KB Output isn't correct
9 Incorrect 0 ms 5060 KB Output isn't correct
10 Incorrect 0 ms 5060 KB Unexpected end of file - int64 expected
11 Incorrect 0 ms 5060 KB Output isn't correct
12 Incorrect 0 ms 5060 KB Output isn't correct
13 Incorrect 0 ms 5060 KB Output isn't correct
14 Incorrect 0 ms 5060 KB Output isn't correct
15 Incorrect 0 ms 5060 KB Output isn't correct
16 Incorrect 9 ms 5548 KB Output isn't correct
17 Incorrect 6 ms 5548 KB Output isn't correct
18 Incorrect 13 ms 5548 KB Output isn't correct
19 Incorrect 16 ms 5548 KB Output isn't correct
20 Incorrect 6 ms 5352 KB Unexpected end of file - int64 expected
21 Incorrect 53 ms 6956 KB Output isn't correct
22 Incorrect 59 ms 6956 KB Output isn't correct
23 Incorrect 49 ms 6956 KB Output isn't correct
24 Incorrect 56 ms 6956 KB Output isn't correct
25 Incorrect 43 ms 6956 KB Output isn't correct
26 Incorrect 59 ms 6956 KB Output isn't correct
27 Incorrect 69 ms 6956 KB Output isn't correct
28 Incorrect 53 ms 6956 KB Output isn't correct
29 Incorrect 43 ms 6956 KB Output isn't correct
30 Incorrect 39 ms 6432 KB Unexpected end of file - int64 expected
31 Incorrect 0 ms 5060 KB Unexpected end of file - int64 expected
32 Incorrect 0 ms 5060 KB Unexpected end of file - int64 expected
# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 5060 KB Output is correct
2 Correct 0 ms 5060 KB Output is correct
3 Correct 0 ms 5060 KB Output is correct
4 Correct 0 ms 5060 KB Output is correct
5 Correct 0 ms 5060 KB Output is correct
6 Correct 0 ms 5060 KB Output is correct
7 Correct 0 ms 5060 KB Output is correct
8 Correct 0 ms 5060 KB Output is correct
9 Correct 0 ms 5060 KB Output is correct
10 Correct 0 ms 5060 KB Output is correct
11 Correct 0 ms 5060 KB Output is correct
12 Correct 0 ms 5060 KB Output is correct
13 Correct 0 ms 5060 KB Output is correct
14 Correct 0 ms 5060 KB Output is correct
15 Correct 0 ms 5204 KB Output is correct
16 Correct 19 ms 5532 KB Output is correct
17 Correct 16 ms 5532 KB Output is correct
18 Correct 13 ms 5532 KB Output is correct
19 Correct 13 ms 5532 KB Output is correct
20 Correct 6 ms 5060 KB Output is correct
21 Correct 76 ms 6684 KB Output is correct
22 Correct 73 ms 6684 KB Output is correct
23 Correct 73 ms 6684 KB Output is correct
24 Correct 73 ms 6684 KB Output is correct
25 Correct 66 ms 8220 KB Output is correct
26 Correct 69 ms 6684 KB Output is correct
27 Correct 66 ms 6684 KB Output is correct
28 Correct 73 ms 6684 KB Output is correct
29 Correct 89 ms 6684 KB Output is correct
30 Correct 36 ms 5532 KB Output is correct
31 Correct 0 ms 5060 KB Output is correct
32 Correct 0 ms 5060 KB Output is correct