Submission #828154

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
828154	2023-08-17 06:06:41	PoonYaPat	Food Court (JOI21_foodcourt)	C++14	0 / 100	66 ms	48152 KiB

foodcourt

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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll,ll> pii;
int n,m,q,ans[250005],base[250005];
ll s[1<<20],lz[1<<20],fen[250050];
struct Gr {
    int val,idx,gr;
};
vector<pii> want[250005]; //number on queue and the index of ans
vector<Gr> p[250005]; //people, idx, group
vector<pii> qu[250005]; //queue, idx
ll find(int x) {
    ll sum=0;
    while (x) {
        sum+=fen[x];
        x-=x&-x;
    }
    return sum;
}
void upd(int x, ll val) {
    while (x<=q+5) {
        fen[x]+=val;
        x+=x&-x;
    }
 
 
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