Submission #2555436
Source Code Expand
#include <bits/stdc++.h> #define rep(i,n) for(int i=0;i<(n);i++) #define loop(i,x,n) for(int i=(x);i<(n);i++) #define all(v) (v).begin(),(v).end() #define int long long using namespace std; const int MOD=1e9+7; const int INF=1e15; template<typename T> void cmax(T &a, T b) {a = max(a, b);} template<typename T> void cmin(T &a, T b) {a = min(a, b);} signed main(){ int n; cin>>n; map<int,int> mp; set<int> s; rep(i,n){ int a;cin>>a; mp[a]++; s.insert(a); } int res=0; for(auto x:s){ if(mp[x]%2==0){ mp[x]=2; }else{ mp[x]=1; res++; } } //cout<<res<<endl; // for(auto x:mp){ // cout<<x.first<<' '<<x.second<<endl; // } int two=0; for(auto x:s){ if(mp[x]==2)two++; } //cout<<two<<endl; if(two%2==0){ res+=two; }else{ res+=(two/2)*2; } cout<<res<<endl; return 0; }
Submission Info
Submission Time | |
---|---|
Task | D - Card Eater |
User | fuu32 |
Language | C++14 (GCC 5.4.1) |
Score | 400 |
Code Size | 911 Byte |
Status | AC |
Exec Time | 109 ms |
Memory | 11136 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 400 / 400 | ||||
Status |
|
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Set Name | Test Cases |
---|---|
Sample | 00_example_01.txt, 00_example_02.txt |
All | 00_example_01.txt, 00_example_02.txt, 01.txt, 02.txt, 03.txt, 04.txt, 05.txt, 06.txt, 07.txt, 08.txt, 09.txt, 10.txt, 11.txt, 12.txt, 13.txt, 14.txt, 15.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
00_example_01.txt | AC | 1 ms | 256 KB |
00_example_02.txt | AC | 1 ms | 256 KB |
01.txt | AC | 1 ms | 256 KB |
02.txt | AC | 3 ms | 256 KB |
03.txt | AC | 1 ms | 256 KB |
04.txt | AC | 1 ms | 256 KB |
05.txt | AC | 1 ms | 256 KB |
06.txt | AC | 33 ms | 256 KB |
07.txt | AC | 33 ms | 256 KB |
08.txt | AC | 61 ms | 1280 KB |
09.txt | AC | 33 ms | 256 KB |
10.txt | AC | 32 ms | 256 KB |
11.txt | AC | 58 ms | 1024 KB |
12.txt | AC | 33 ms | 256 KB |
13.txt | AC | 47 ms | 512 KB |
14.txt | AC | 109 ms | 11136 KB |
15.txt | AC | 29 ms | 256 KB |