Submission #143551

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
143551	2019-08-14 14:47:35	muradeyn	Arranging Shoes (IOI19_shoes)	C++14	10 / 100	2 ms	380 KiB

shoes

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#include "shoes.h"
#include <bits/stdc++.h>
using namespace std;
const int maxx = 100001;
int fen[maxx];
void update(int idx) {
    idx++;
    while (idx < maxx)fen[idx]++ , idx += (idx & -idx);
}
int get(int idx) {
    idx++;
    int ret = 0;
    while (idx > 0) {
        ret += fen[idx];
        idx -= (idx & -idx);
    }
    return ret;
}
int query(int l , int r) {
    l++; r++;
    if (l > r)return 0;
    return get(r) - get(l - 1);
}
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 15
• Subtask 5: 0 / 20
• Subtask 6: 0 / 15