제출 #1277882

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1277882		longdeptrai	운세 보기 2 (JOI14_fortune_telling2)	C++20	0 / 100	3 ms	576 KiB

fortune_telling2

#include <bits/stdc++.h>
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
//using namespace __gnu_pbds;
#define LongDepTrai "fortunetelling2"
#define ll long long
#define int long long
#define ull unsigned long long
#define ld long double
#define ii pair<int,int>
#define iii pair<int,ii>
#define iv pair<ii,ii>
#define pll pair<ll,ll>
#define vi vector<int>
#define vii vector<ii>
#define vll vector<ll>
#define fi first
#define se second
#define pb push_back
#define all(x) (x).begin(), (x).end()
#define sz(x) int((x).size())
#define order_set(T) tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>

inline ll add(ll a, ll b, ll mod){ a += b; if(a >= mod) a -= mod; return a; }
inline ll sub(ll a, ll b, ll mod){ a -= b; if(a < 0) a += mod; return a; }
inline ll mul(ll a, ll b, ll mod){ return ( (ll)a * b ) % mod; }

static mt19937_64 rng((unsigned)chrono::steady_clock::now().time_since_epoch().count());
const int N=5e5+9;
int n,k,a[N],b[N],t[N],mark[N],node[4*N],beo[4*N],chodo[N*4];
void Update(int i,int l,int r,int pos,int val){
    if(l>pos || r<pos) return;
    if(l==r){
        node[i]=val;
        beo[i]=1;
        return;
    }
    Update(i*2,l,(l+r)/2,pos,val);
    Update(i*2+1,(l+r)/2+1,r,pos,val);

    node[i]=max(node[i*2],node[i*2+1]);
    beo[i]=beo[i*2]+beo[i*2+1];
}
int Find(int i,int l,int r,int u,int v){
    if(l>v || r<u) return -1;
    if(l<=u && v<=r) return node[i];
    return max(Find(i*2,l,r,u,(u+v)/2),Find(i*2+1,l,r,(u+v)/2+1,v));
}
int Find2(int i,int l,int r,int u,int v){
    if(l>v || r<u) return 0;
    if(l<=u && v<=r) return beo[i];
    return Find2(i*2,l,r,u,(u+v)/2)+Find2(i*2+1,l,r,(u+v)/2+1,v);
}
void Update2(int i,int l,int r,int pos,int val){
    if(l>pos || r<pos) return;
    if(l==r){
        chodo[i]=1;
        return;
    }
    Update2(i*2,l,(l+r)/2,pos,val);
    Update2(i*2+1,(l+r)/2+1,r,pos,val);

    chodo[i]=chodo[i*2]+chodo[i*2+1];
}
int Find3(int i,int l,int r,int u,int v){
    if(l>v || r<u) return 0;
    if(l<=u && v<=r) return chodo[i];
    return Find3(i*2,l,r,u,(u+v)/2)+Find3(i*2+1,l,r,(u+v)/2+1,v);
}
vi v;
int idx(int val){
    return((lower_bound(v.begin(),v.end(),val)-v.begin())+1);
}
signed main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);cout.tie(0);

    if(fopen(LongDepTrai".inp","r")){
        freopen(LongDepTrai".inp","r",stdin);
        freopen(LongDepTrai".out","w",stdout);
    }

    cin>>n>>k;
    for(int i=1;i<=n;i++){
        cin>>a[i]>>b[i];
    }

    for(int i=1;i<=k;i++){
        cin>>t[i];
        v.pb(t[i]);
    }
    for(int i=1;i<=n;i++){
        v.pb({min(a[i],b[i])});
        v.pb({max(a[i],b[i])});
    }
    sort(v.begin(),v.end());
    v.erase(unique(v.begin(),v.end()),v.end());
    int m=v.size()+1;
    for(int i=1;i<=m;i++){
        Update(1,1,m,i,-1);
    }
    for(int i=1;i<=k;i++){
        Update(1,1,m,idx(t[i]),i);
    }
    int res=0;
    vii qr;
    for(int i=1;i<=n;i++){
        int l=idx(min(a[i],b[i]));
        int r=idx(max(a[i],b[i])-1);
        int j=Find(1,l,r,1,m);
        if(j==-1){
            int tmp=Find2(1,idx(max(a[i],b[i])),m,1,m);
            if(tmp%2==0) res+=a[i];
            else         res+=b[i];
            continue;
        }
        qr.pb({j,i});
    }

    sort(qr.begin(),qr.end(),greater<ii>());
    int j=k;
    for(ii x:qr){
        while(j>=x.fi){
            Update2(1,1,m,idx(t[j]),1);
            j--;
        }
        int tmp=Find3(1,idx(max(a[x.se],b[x.se])),m,1,m);
        if(tmp%2==0) res+=max(a[x.se],b[x.se]);
        else         res+=min(a[x.se],b[x.se]);
    }
    cout<<res;
    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

fortune_telling2.cpp: In function 'int main()':
fortune_telling2.cpp:80:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   80 |         freopen(LongDepTrai".inp","r",stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fortune_telling2.cpp:81:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   81 |         freopen(LongDepTrai".out","w",stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 4
• Subtask 2: 0 / 31
• Subtask 3: 0 / 65