Submission #80855

#	Time	Username	Problem	Language	Result	Execution time	Memory
80855		luckyboy	Doktor (COCI17_doktor)	C++14	60 / 100	1072 ms	10216 KiB

doktor

/** Lucky Boy **/
#include <bits/stdc++.h>
#define FOR(i, a, b) for (int i = (a); i <= (b); ++i)
#define FORD(i, a, b) for (int i = (a); i >= (b); --i)
#define pb push_back
#define mp make_pair
#define F first
#define S second
#define maxc 1000000007
#define maxn 500005
#define maxm 500005
#define pii pair <int,int>
#define Task ""
using namespace std;
int n,a[maxn],b[maxn],cnt[maxn << 1],ans,l,r,sum[maxn];
int main()
{
    //ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    //freopen(".inp", "r",stdin);
    scanf("%d",&n);
    FOR(i,1,n)
    {
        scanf("%d",&a[i]),b[i] = a[i],a[i] += i;
        sum[i] = sum[i-1] + (b[i] == i);
    }
    FOR(i,1,n)
    {
        FOR(j,1,2*n) cnt[j] = 0;
        FOR(j,i,n)
        {
            ++cnt[a[j]];
            if (cnt[i+j] + sum[i-1] + sum[n] - sum[j-1] > ans)
            {
                ans = cnt[i+j] + sum[i-1] + sum[n] - sum[j-1];
                l = i,r = j;
            }
        }
    }
    a[l] -= l;
    if (l != r) a[r] -= r;
    printf("%d %d",a[l],a[r]);
}

Compilation message (stderr)

doktor.cpp: In function 'int main()':
doktor.cpp:20:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&n);
     ~~~~~^~~~~~~~~
doktor.cpp:23:38: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&a[i]),b[i] = a[i],a[i] += i;
         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 10 / 10
• Subtask 5: 10 / 10
• Subtask 6: 10 / 10
• Subtask 7: 0 / 10
• Subtask 8: 0 / 10
• Subtask 9: 0 / 10
• Subtask 10: 0 / 10