Submission #152924

# Submission time Handle Problem Language Result Execution time Memory
152924 2019-09-10T13:19:07 Z arnold518 Gap (APIO16_gap) C++14
100 / 100
76 ms 3308 KB
#include "gap.h"
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

const int MAXN = 1e5;

int T, N;
ll A[MAXN+10], ans;

ll findGap(int _T, int _N)
{
    int i, j;
    T=_T; N=_N;

    if(T==1)
    {
        ll s=0, t=1e18;
        for(i=1, j=N; i<=j; i++, j--)
        {
            ll a, b;
            MinMax(s, t, &a, &b);
            A[i]=a; A[j]=b;
            s=a+1; t=b-1;
        }
        for(i=2; i<=N; i++) ans=max(ans, A[i]-A[i-1]);
        return ans;
    }
    else
    {
        ll s, e;
        MinMax(0, 1e18, &s, &e);
        if(N==2) return e-s;
        ll g=(e-s+N-2)/(ll)(N-1);
        ll a, b, p=s, q=s+g;
        vector<pll> V;
        while(1)
        {
            if(p>e) break;
            if(p>q) break;
            MinMax(p, q, &a, &b);
            if(a!=-1) V.push_back({a, b});
            p=q+1; q=p+g;
            q=min(q, e);
        }
        //for(i=0; i<V.size(); i++) printf("%lld %lld\n", V[i].first, V[i].second);
        for(i=1; i<V.size(); i++) ans=max(ans, V[i].first-V[i-1].second);
        return ans;
    }
}

Compilation message

gap.cpp: In function 'll findGap(int, int)':
gap.cpp:50:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(i=1; i<V.size(); i++) ans=max(ans, V[i].first-V[i-1].second);
                  ~^~~~~~~~~
# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 3 ms 504 KB Output is correct
12 Correct 3 ms 376 KB Output is correct
13 Correct 3 ms 376 KB Output is correct
14 Correct 3 ms 376 KB Output is correct
15 Correct 3 ms 376 KB Output is correct
16 Correct 15 ms 732 KB Output is correct
17 Correct 15 ms 760 KB Output is correct
18 Correct 15 ms 760 KB Output is correct
19 Correct 15 ms 760 KB Output is correct
20 Correct 11 ms 760 KB Output is correct
21 Correct 55 ms 1912 KB Output is correct
22 Correct 55 ms 1888 KB Output is correct
23 Correct 55 ms 1904 KB Output is correct
24 Correct 55 ms 1936 KB Output is correct
25 Correct 47 ms 1912 KB Output is correct
26 Correct 58 ms 1884 KB Output is correct
27 Correct 55 ms 1912 KB Output is correct
28 Correct 55 ms 2040 KB Output is correct
29 Correct 55 ms 1912 KB Output is correct
30 Correct 41 ms 1872 KB Output is correct
31 Correct 2 ms 380 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 3 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 3 ms 376 KB Output is correct
12 Correct 3 ms 376 KB Output is correct
13 Correct 3 ms 376 KB Output is correct
14 Correct 3 ms 376 KB Output is correct
15 Correct 3 ms 376 KB Output is correct
16 Correct 20 ms 972 KB Output is correct
17 Correct 19 ms 888 KB Output is correct
18 Correct 19 ms 888 KB Output is correct
19 Correct 20 ms 888 KB Output is correct
20 Correct 10 ms 504 KB Output is correct
21 Correct 76 ms 2288 KB Output is correct
22 Correct 74 ms 2288 KB Output is correct
23 Correct 74 ms 2416 KB Output is correct
24 Correct 74 ms 2288 KB Output is correct
25 Correct 70 ms 3308 KB Output is correct
26 Correct 75 ms 2288 KB Output is correct
27 Correct 75 ms 2288 KB Output is correct
28 Correct 74 ms 2240 KB Output is correct
29 Correct 76 ms 2288 KB Output is correct
30 Correct 36 ms 1528 KB Output is correct
31 Correct 2 ms 376 KB Output is correct
32 Correct 2 ms 348 KB Output is correct