제출 #1157698

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1157698		modwwe	Distributing Candies (IOI21_candies)	C++20	100 / 100	213 ms	45496 KiB

candies

#include "candies.h"
#pragma GCC optimize("Ofast,unroll-loops")
#include<bits/stdc++.h>
//#define int   long long
#define ll long long
#define down cout<<'\n';
#define debug cout<<" cucuucucuuu",down
#define modwwe  int t;cin>>t; while(t--)
#define bit(i,j) (i>>j&1)
#define sobit(a) __builtin_popcountll(a)
#define task2 "ftree"
#define task "test"
#define fin(x) freopen(x".inp","r",stdin)
#define fou(x) freopen(x".out","w",stdout)
#define pb push_back
#define mask(k) (1<<k)
#define checktime   cerr << (double)clock() / CLOCKS_PER_SEC * 1000  << " ms";
using namespace std;
#define getchar_unlocked getchar
mt19937 rd(chrono::steady_clock::now().time_since_epoch().count());
int rand(int l,int r)
{
    return uniform_int_distribution<int>(l,r)(rd);
}
void phongbeo();
const int inf = 2e18;
const ll mod2 = 1e9+7;
const ll base=67;
int  n, m, s1, s2, s4, s3, sf, k, s5, s6, mx, s7, s8, s9, mx2, res, dem2 = 0, dem = 0, s33, dem3, dem4, mid, l2, r2, center;
int  i, s10, s12,k1,k2,k3,s11,lim,w,l,r,dem5,dem6,dem7,dem9;
int kk;
int t;
int el = 19;/*
main()
{
    if(fopen(task2".inp","r"))
    {
        fin(task2);
        fou(task2);
    }
    if(fopen(task".inp","r"))
    {
        fin(task);
        fou(task);
    }
    ios_base::sync_with_stdio(0);
    cout.tie(0);
    cin.tie(0);
//   cin>>s1;
//int t;cin>>t; while(t--)
    phongbeo(),down
    checktime
}*/
ll cost[200007],dist[200007];
struct ib
{
    ll a,b;
};
struct ic
{
    ll a,b,c;
} dd;
vector<ib> v[200007];
set<ll> in,ou;
vector<int> ans;
struct segtree
{
    ic t[800032];
    ic mer(ic a,ic b)
    {
        ic c;
        c.a=a.a+b.a;
        c.b=min(a.b,b.b+a.a);
        c.c=max(a.c,b.c+a.a);
        return c;
    }
    void flip(int node,int l,int r,int l1,int x)
    {
        if(l==r)
        {
            if(x==1)
            {
                t[node]= {cost[l],min(0ll,cost[l]),max(0ll,cost[l])};
            }
            else
            {
                t[node]= {0,inf,-inf};
            }
            return;
        }
        int mid=l+r>>1;
        if(l1<+mid)flip(node<<1,l,mid,l1,x);
        else flip(node<<1|1,mid+1,r,l1,x);
        t[node]=mer(t[node<<1],t[node<<1|1]);
    }
    int walk(int node,int l,int r,ic x,int z)
    {
        if(l==r) return l;
        int mid=l+r>>1;
        ic xx=mer(t[node<<1|1],x);
        if(xx.c-xx.b<z) return walk(node<<1,l,mid,xx,z);
        return walk(node<<1|1,mid+1,r,x,z);
    }
    ic get(int node,int l,int r,int l1,int r1)
    {
        if(l>r1||r<l1) return dd;
        if(l>=l1&&r<=r1) return t[node];
        int mid=l+r>>1;
        return mer(get(node<<1,l,mid,l1,r1),get(node<<1|1,mid+1,r,l1,r1));
    }
} st;
vector<int> distribute_candies(vector<int> C,vector<int> L,vector<int> R,vector<int> V)
{
    n=C.size();
    m=L.size();
    for(int i=0; i<n; i++)
        dist[i]=C[i];
    for(int i=0; i<m; i++)
        v[L[i]].pb({1,i}),
        v[R[i]+1].pb({-1,i});
    for(int i=0; i<m; i++)
        cost[i+1]=V[i];
    for(int i=1; i<=4*m+4; i++)
        st.t[i]= {0,inf,-inf};
    s4=0;
    for(int i=0; i<n; i++)
    {
        for(auto x:v[i])
            st.flip(1,0,m,x.b,x.a),s4+=x.a;
        if(s4==0)
        {
            ans.pb(0);
            continue;
        }
        if(st.t[1].c-st.t[1].b<=dist[i])ans.pb(st.t[1].a-st.t[1].b);
        else
        {

            int x=st.walk(1,0,m,dd,dist[i]);
            ic ddd=st.get(1,0,m,x,m);
            if(ddd.b==min(cost[x],0ll) &&ddd.c!=0)ans.pb(max(0ll,dist[i]-(ddd.c-ddd.a)));
            else ans.pb(ddd.a-ddd.b);
        }
    }
    return ans;
}/**
vector<int> trau(vector<int> C,vector<int> L,vector<int> R,vector<int> V)
{
    n=C.size();
    m=L.size();
    for(int i=0; i<C.size(); i++)
        dist[i]=C[i],cost[i]=0;
    for(int i=0; i<m; i++)
    {
        for(int j=L[i]; j<=R[i]; j++)
        {
            cost[j]+=V[i];
            if(cost[j]<0)cost[j]=0;
            if(cost[j]>dist[j])cost[j]=dist[j];
        }
    }
    ans.clear();
    for(int i=0; i<n; i++)
        ans.pb(cost[i]);
    return ans;
}
///https://codeforces.com/blog/entry/92083?#comment-807860
void phongbeo()
{
    cin>>n>>m;
    vector<int> C;
    for(int i=1; i<=n; i++)
        cin>>s2,C.pb(s2);
    vector<int> L,R,V;
    for(int i=1; i<=m; i++)
        cin>>l>>r>>s2,L.pb(l),R.pb(r),V.pb(s2);
    vector<int> vv=distribute_candies(C,L,R,V);
    vector<int>kiki=trau(C,L,R,V);
    if(vv!=kiki)
    {
         for(auto x:vv)
            cout<<x<<" ";
         down
         for(auto x:kiki)
            cout<<x<<" ";

    }
}
*/

컴파일 시 표준 에러 (stderr) 메시지

candies.cpp:26:17: warning: overflow in conversion from 'double' to 'int' changes value from '2.0e+18' to '2147483647' [-Woverflow]
   26 | const int inf = 2e18;
      |                 ^~~~

• Subtask 1: 3 / 3
• Subtask 2: 8 / 8
• Subtask 3: 27 / 27
• Subtask 4: 29 / 29
• Subtask 5: 33 / 33