Submission #619592

#	Time	Username	Problem	Language	Result	Execution time	Memory
619592		Koosha_mv	Distributing Candies (IOI21_candies)	C++17	3 / 100	5066 ms	35332 KiB

candies

#include "candies.h"
#include <bits/stdc++.h>
using namespace std;
#define dbgv(v) cout<<#v<<" = "; f(i,0,int(v.size())) cout<<v[i]<<" "; cout<<endl
#define dbga(a,x,y) cout<<#a<<" = "; f(i,x,y) cout<<a[i]<<" "; cout<<endl
#define erorp(x) cout<<#x<<"={"<<x.F<<" , "<<x.S<<"}"<<endl
#define eror(x) cout<<#x<<'='<<(x)<<endl
#define f_(i,a,b) for(int i=a;i>=b;i--)
#define f(i,a,b) for(int i=a;i<b;i++)
#define nb(x) __builtin_popcount(x)
#define all(v) v.begin(),v.end()
#define bit(n,k) (((n)>>(k))&1)
#define Add(x,y) x=(x+y)%mod
#define maxm(a,b) a=max(a,b)
#define minm(a,b) a=min(a,b)
#define lst(x) x[x.size()-1]
#define sz(x) int(x.size())
#define mp make_pair
#define ll long long
#define pb push_back
#define S second
#define F first

const int N=2e5+99;

int n,q,c[N],a[N];
ll b[N];
vector<int> s,t,val,ad[N],dl[N];

vector<int> distribute_candies(vector<int> _c,vector<int> _s,vector<int> _t,vector<int> _val){
    s=_s,t=_t,val=_val;
    n=_c.size(),q=s.size();
    vector<int> ans(n);
    f(i,0,n) c[i]=_c[i];
    f(i,0,q){
        ad[s[i]].pb(i);
        dl[t[i]].pb(i);
    }
    f(i,0,n){
        for(auto x : ad[i]) a[x+1]+=val[x];
        int mnid=q,mxid=q,b0=q,b1=q;
        ll sum=0;
        f(j,1,q+1){
            b[j]=b[j-1]+a[j];
            sum+=a[j];
            maxm(sum,0ll);
            minm(sum,1ll*c[i]);
        }
        f_(j,q,0){
            if(b[j]<b[mnid]){
                mnid=j;
                if(b[mxid]-b[j]<c[i]){
                    b0=j;
                }
            }
            if(b[j]>b[mxid]){
                mxid=j;
                if(b[j]-b[mnid]<c[i]){
                    b1=j;
                }
            }
        }
        //dbga(b,0,q+1);
        //cout<<b0<<" "<<b1<<endl;
        ans[i]=sum;
        for(auto x : dl[i]) a[x+1]-=val[x];
    }
    return ans;
}

Compilation message (stderr)

candies.cpp: In function 'std::vector<int> distribute_candies(std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
candies.cpp:41:27: warning: variable 'b0' set but not used [-Wunused-but-set-variable]
   41 |         int mnid=q,mxid=q,b0=q,b1=q;
      |                           ^~
candies.cpp:41:32: warning: variable 'b1' set but not used [-Wunused-but-set-variable]
   41 |         int mnid=q,mxid=q,b0=q,b1=q;
      |                                ^~

• Subtask 1: 3 / 3
• Subtask 2: 0 / 8
• Subtask 3: 0 / 27
• Subtask 4: 0 / 29
• Subtask 5: 0 / 33