Submission #3695562
Source Code Expand
#include <bits/stdc++.h> #define rep(i, a, b) for(ll i = ll(a); i < ll(b); i++) #define rer(i, a, b) for(int i = int(a) - 1; i >= int(b); i--) using namespace std; typedef long long int ll; typedef pair<ll,ll> P; const ll MAX_N=1e5; ll bit[MAX_N+1], n; ll a[100000], b[100000], d[100000]; P c[100000]; ll sum(ll i){ ll s=0; while(i>0){ s+=bit[i]; i-=i&-i; } return s; } void add(ll i, ll x){ while(i<=n){ bit[i]+=x; i+=i&-i; } } int main() { ios::sync_with_stdio(false); cin.tie(0); cin>>n; rep(i,0,n) { cin>>a[i]; c[i]=make_pair(a[i],i); } sort(c,c+n); b[0]=1; rep(i,1,n){ if (c[i].first!=c[i-1].first){ b[i]=i+1; } else { cout <<-1<<"\n"; return 0; } } rep(i,0,n){ d[c[i].second]=b[i]; } ll ans=0; rep(j,0,n){ ans+=(j-sum(d[j]))*a[j]; add(d[j],1); } cout << ans<<"\n"; }
Submission Info
Submission Time | |
---|---|
Task | E - Line up! |
User | yuki1997 |
Language | C++14 (GCC 5.4.1) |
Score | 100 |
Code Size | 1054 Byte |
Status | AC |
Exec Time | 22 ms |
Memory | 4992 KB |
Judge Result
Set Name | Sample | Subtask1 | All | ||||||
---|---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 30 / 30 | 70 / 70 | ||||||
Status |
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Set Name | Test Cases |
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Sample | subtask0_sample_01.txt, subtask0_sample_02.txt |
Subtask1 | subtask1_01.txt, subtask1_02.txt, subtask1_03.txt, subtask1_04.txt, subtask1_05.txt, subtask1_06.txt, subtask1_07.txt, subtask1_08.txt, subtask1_09.txt, subtask1_10.txt, subtask1_11.txt, subtask1_12.txt, subtask1_13.txt, subtask1_14.txt, subtask1_15.txt, subtask1_16.txt, subtask1_17.txt, subtask1_18.txt, subtask1_19.txt, subtask1_20.txt, subtask1_21.txt, subtask1_22.txt, subtask1_23.txt, subtask0_sample_01.txt, subtask0_sample_02.txt |
All | subtask0_sample_01.txt, subtask0_sample_02.txt, subtask1_01.txt, subtask1_02.txt, subtask1_03.txt, subtask1_04.txt, subtask1_05.txt, subtask1_06.txt, subtask1_07.txt, subtask1_08.txt, subtask1_09.txt, subtask1_10.txt, subtask1_11.txt, subtask1_12.txt, subtask1_13.txt, subtask1_14.txt, subtask1_15.txt, subtask1_16.txt, subtask1_17.txt, subtask1_18.txt, subtask1_19.txt, subtask1_20.txt, subtask1_21.txt, subtask1_22.txt, subtask1_23.txt, subtask2_01.txt, subtask2_02.txt, subtask2_03.txt, subtask2_04.txt, subtask2_05.txt, subtask2_06.txt, subtask2_07.txt, subtask2_08.txt, subtask2_09.txt, subtask2_10.txt, subtask2_11.txt, subtask2_12.txt, subtask2_13.txt, subtask2_14.txt, subtask2_15.txt, subtask2_16.txt, subtask2_17.txt, subtask2_18.txt, subtask2_19.txt, subtask2_20.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
subtask0_sample_01.txt | AC | 2 ms | 2304 KB |
subtask0_sample_02.txt | AC | 2 ms | 2304 KB |
subtask1_01.txt | AC | 2 ms | 2304 KB |
subtask1_02.txt | AC | 2 ms | 2304 KB |
subtask1_03.txt | AC | 2 ms | 2304 KB |
subtask1_04.txt | AC | 2 ms | 2304 KB |
subtask1_05.txt | AC | 1 ms | 2304 KB |
subtask1_06.txt | AC | 2 ms | 2304 KB |
subtask1_07.txt | AC | 2 ms | 2304 KB |
subtask1_08.txt | AC | 2 ms | 2304 KB |
subtask1_09.txt | AC | 2 ms | 2304 KB |
subtask1_10.txt | AC | 2 ms | 2304 KB |
subtask1_11.txt | AC | 2 ms | 2304 KB |
subtask1_12.txt | AC | 2 ms | 2304 KB |
subtask1_13.txt | AC | 2 ms | 2304 KB |
subtask1_14.txt | AC | 2 ms | 2304 KB |
subtask1_15.txt | AC | 2 ms | 2304 KB |
subtask1_16.txt | AC | 2 ms | 2304 KB |
subtask1_17.txt | AC | 2 ms | 2304 KB |
subtask1_18.txt | AC | 2 ms | 2304 KB |
subtask1_19.txt | AC | 2 ms | 2304 KB |
subtask1_20.txt | AC | 2 ms | 2304 KB |
subtask1_21.txt | AC | 2 ms | 2304 KB |
subtask1_22.txt | AC | 2 ms | 2304 KB |
subtask1_23.txt | AC | 2 ms | 2304 KB |
subtask2_01.txt | AC | 12 ms | 3840 KB |
subtask2_02.txt | AC | 15 ms | 4992 KB |
subtask2_03.txt | AC | 15 ms | 4992 KB |
subtask2_04.txt | AC | 10 ms | 3840 KB |
subtask2_05.txt | AC | 21 ms | 3840 KB |
subtask2_06.txt | AC | 17 ms | 3840 KB |
subtask2_07.txt | AC | 17 ms | 3840 KB |
subtask2_08.txt | AC | 17 ms | 3840 KB |
subtask2_09.txt | AC | 17 ms | 3840 KB |
subtask2_10.txt | AC | 17 ms | 3840 KB |
subtask2_11.txt | AC | 22 ms | 4992 KB |
subtask2_12.txt | AC | 22 ms | 4992 KB |
subtask2_13.txt | AC | 22 ms | 4992 KB |
subtask2_14.txt | AC | 22 ms | 4992 KB |
subtask2_15.txt | AC | 22 ms | 4992 KB |
subtask2_16.txt | AC | 22 ms | 4992 KB |
subtask2_17.txt | AC | 22 ms | 4992 KB |
subtask2_18.txt | AC | 22 ms | 4992 KB |
subtask2_19.txt | AC | 22 ms | 4992 KB |
subtask2_20.txt | AC | 22 ms | 4992 KB |