Submission #64553

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
64553	2018-08-04 20:56:02	zetapi	Swap (BOI16_swap)	C++14	100 / 100	307 ms	25596 KiB

swap

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#include <bits/stdc++.h>
using namespace std;
 
#define pb  push_back
#define mp  make_pair
#define int long long
#define itr ::iterator 
 
typedef pair<int,int>  pii;
 
const int MAX=1e6;
 
int N,n,arr[MAX],p[MAX];
 
map<pii,int> dp;
map<pii,int> bes;
int get(int ind, int y) {
    if (bes.count({ind,y})) return bes[{ind,y}];
    if (2*ind > n) return ind;
    if (2*ind+1 > n) {
        if (y > p[2*ind]) return 2*ind;
        return ind;
    }
    
    if (y < min(p[2*ind],p[2*ind+1])) return bes[{ind,y}] = ind;
    if (p[2*ind] < min(y,p[2*ind+1])) return bes[{ind,y}] = get(2*ind,y);
    
    int mn = min(y,p[2*ind]);
    if (get(2*ind,mn) < get(2*ind+1,mn)) {
 
 
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Compilation message (stderr)

swap.cpp: In function 'long long int get1(long long int, long long int)':
swap.cpp:63:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^

• Subtask 1: 10 / 10
• Subtask 2: 11 / 11
• Subtask 3: 27 / 27
• Subtask 4: 20 / 20
• Subtask 5: 32 / 32