제출 #207258

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
207258		mayhoubsaleh	운세 보기 2 (JOI14_fortune_telling2)	C++14	100 / 100	743 ms	71148 KiB

fortune_telling2

#include <bits/stdc++.h>
#include <string>
#define ll long long
#define pb push_back
#define IOS ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
#define mid (l+r)/2
#define left 2*i+1
#define righ 2*i+2

using namespace std;
const ll mod=1e9+7;
const ll maxn=2e5+100;
ll n,k;
ll a[maxn],b[maxn];
vector<ll> v[4*maxn];
pair<ll,ll>t[maxn];

void build(ll i,ll l,ll r){
    if(l==r){
        v[i].pb(t[r].second);
        return;
    }
    build(left,l,mid);
    build(righ,mid+1,r);
    ll lp=0,rp=0;
    while(lp<v[left].size()&&rp<v[righ].size()){
        if(v[left][lp]<v[righ][rp])v[i].pb(v[left][lp++]);
        else v[i].pb(v[righ][rp++]);
    }
    while(lp<v[left].size())v[i].pb(v[left][lp++]);
    while(rp<v[righ].size())v[i].pb(v[righ][rp++]);
}

ll getmax(ll i,ll l,ll r,ll ql,ll qr){
    if(ql>qr)return -1;
    if(r<ql||l>qr)return -1;
    if(l>=ql&&r<=qr)return v[i].back();
    return max(getmax(left,l,mid,ql,qr),getmax(righ,mid+1,r,ql,qr));
}

ll cnt(ll i,ll l,ll r,ll ql,ll qr,ll val){
    if(ql>qr)return 0;
    if(r<ql||l>qr)return 0;
    if(l>=ql&&r<=qr){
        ll x=upper_bound(v[i].begin(),v[i].end(),val)-v[i].begin();
        return v[i].size()-x;
    }
    return cnt(left,l,mid,ql,qr,val)+cnt(righ,mid+1,r,ql,qr,val);
}
ll c[maxn];
int main()
{
    IOS
    cin>>n>>k;
    for(ll i=0;i<n;i++)cin>>a[i]>>b[i];

    for(ll i=0;i<k;i++){
        cin>>t[i].first;
        t[i].second=i;
    }

    sort(t,t+k);
    for(ll i=0;i<k;i++)c[i]=t[i].first;
    build(0,0,k-1);
    ll ans=0;
    for(ll i=0;i<n;i++){
        ll l=lower_bound(c,c+k,min(a[i],b[i]))-c;
        ll r=lower_bound(c,c+k,max(a[i],b[i]))-c-1;
        ll id=getmax(0,0,k-1,l,r);
        l=lower_bound(c,c+k,max(a[i],b[i]))-c;
        r=k-1;
        ll turn=cnt(0,0,k-1,l,r,id);
        if(id==-1){
            if(turn%2==0){ans+=a[i];continue;}
            ans+=b[i];
            continue;
        }
        if(a[i]<b[i])swap(a[i],b[i]);
        if(turn%2==0)ans+=a[i];
        else ans+=b[i];
    }

    cout<<ans<<endl;
    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

fortune_telling2.cpp: In function 'void build(long long int, long long int, long long int)':
fortune_telling2.cpp:26:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     while(lp<v[left].size()&&rp<v[righ].size()){
           ~~^~~~~~~~~~~~~~~
fortune_telling2.cpp:26:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     while(lp<v[left].size()&&rp<v[righ].size()){
                              ~~^~~~~~~~~~~~~~~
fortune_telling2.cpp:30:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     while(lp<v[left].size())v[i].pb(v[left][lp++]);
           ~~^~~~~~~~~~~~~~~
fortune_telling2.cpp:31:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     while(rp<v[righ].size())v[i].pb(v[righ][rp++]);
           ~~^~~~~~~~~~~~~~~

• Subtask 1: 4 / 4
• Subtask 2: 31 / 31
• Subtask 3: 65 / 65