Submission #951586

#	Time	Username	Problem	Language	Result	Execution time	Memory
951586		LittleOrange	Fish 2 (JOI22_fish2)	C++17	0 / 100	1 ms	348 KiB

fish2

#include<bits/stdc++.h>
using namespace std;
using ll = long long;
int main(){
    ios::sync_with_stdio(0);cin.tie(0);
    ll n;
    cin >> n;
    vector<ll> a(n);
    for(ll &i : a) cin >> i;
    ll q;
    cin >> q;
    while(q--){
        ll ty;
        cin >> ty;
        if(ty==1){
            ll x,y;
            cin >> x >> y;
            a[x-1] = y;
        }else{
            ll l,r;
            cin >> l >> r;
            l--;r--;
            vector<ll> v;
            for(ll i = l;i<=r;i++) v.push_back(a[i]);
            sort(v.begin(),v.end());
            ll w = r-l+1;
            vector<ll> u(w);
            u[0] = v[0];
            for(ll i = 1;i<w;i++) u[i]=v[i]+u[i-1];
            //cout << "got";for(ll i : v) cout << " " << i; cout << "\n";
            //cout << "pre";for(ll i : u) cout << " " << i; cout << "\n";
            ll left = w-1;
            for(ll i = 0;i<w;i++){
                ll to = i;
                while(to<w-1&&u[to]>=v[to+1]) to++;
                //cout << i << " to " << to << "\n";
                if (to==w-1){
                    left = i;
                    //cout << "left=" << left << " w=" << w << "\n";
                    break;
                }
                i = to;
            }
            cout << (w-left) << "\n";
        }
    }
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 8
• Subtask 3: 0 / 12
• Subtask 4: 0 / 23
• Subtask 5: 0 / 35
• Subtask 6: 0 / 17