제출 #40629

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
40629		Hassoony	학생 (COCI14_studentsko)	C++14	20 / 100	7 ms	792 KiB

studentsko

#include<bits/stdc++.h>
#include<unordered_map>
using namespace std;
typedef unsigned long long ll;
typedef double D;
const ll inf=(1ll<<61);
const ll mod=1e9+7;
const int MX=5009;
int n,k,a[MX],dp[MX];
int bn(int l,int r,int x){
    int ans=0;
    while(l<=r){
        int mid=(l+r)/2;
        if(dp[mid]>=x)r=mid-1;
        else l=mid+1;
    }
    return l;
}
int DP(){
    int ans=1;
    dp[0]=a[0];
    for(int i=1;i<n;i++){
        if(a[i]<dp[0])dp[0]=a[i];
        else if(a[i]>=dp[ans-1])dp[ans++]=a[i];
        else dp[bn(0,ans,a[i])]=a[i];
    }
    return ans;
}
map<int,int>hashy;
int main(){
    cin>>n>>k;
    for(int i=0;i<n;i++){
        cin>>a[i];
        hashy[a[i]]=1;
    }
    int tt=1,j=1;
    for(auto pp:hashy){
        hashy[pp.first]=tt;
        if(j%k==0)++tt;
        j++;
    }
    for(int i=0;i<n;i++)a[i]=hashy[a[i]];
    cout<<n-DP()<<endl;
}

컴파일 시 표준 에러 (stderr) 메시지

studentsko.cpp: In function 'int bn(int, int, int)':
studentsko.cpp:11:9: warning: unused variable 'ans' [-Wunused-variable]
     int ans=0;
         ^

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 0 / 10
• Subtask 6: 0 / 10
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• Subtask 10: 0 / 10