Submission #70856

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
70856	2018-08-23 14:17:59	yusufake	Gondola (IOI14_gondola)	C++98	100 / 100	129 ms	8612 KiB

gondola

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#include <bits/stdc++.h>
using namespace std;
#include "gondola.h"
#define mp make_pair
#define st first
#define nd second
#define ll long long
const int mod = 1e9 + 9;
const int N   = 2e5 + 5;
pair < int , int > P[N],mn;
int T[N],j;
int valid(int n, int *A){
    int i;
    mn = mp(mod,0);
    map < int , int > M;
    M.clear();
    for(i=0;i<n;i++){
        mn = min(mn , mp(A[i],i));
        if(M[ A[i] ]) return 0;
        M[ A[i] ] = 1;
    }
    if(mn.st > n) { j = 0; return 1; }
    j = mn.nd - mn.st+1;
    if(j < 0) j += n;
    for(i=0;i<n;i++)
        if(A[i] <= n && ((j+A[i]-1 < n && j+A[i]-1 != i)||(j+A[i]-1 >= n && j+A[i]-1-n != i)) )
            return 0;
    return 1;
}
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 10 / 10
• Subtask 4: 5 / 5
• Subtask 5: 10 / 10
• Subtask 6: 20 / 20
• Subtask 7: 5 / 5
• Subtask 8: 15 / 15
• Subtask 9: 15 / 15
• Subtask 10: 10 / 10