Submission #722272

#	Time	Username	Problem	Language	Result	Execution time	Memory
722272		Dec0Dedd	Bodyguards (CEOI10_bodyguards)	C++14	0 / 100	92 ms	14232 KiB

bodyguards

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef pair<ll, ll> pii;

const ll INF = 1e9+10;

ll r, c;

int solve(vector<pii> vr, vector<pii> vc) {
    ll sz=vc.size(), pc[sz]={};

    for (int i=0; i<sz; ++i) pc[i+1]=pc[i]+vc[i].first*vc[i].second;

    ll sm=0, cnt=0;
    for (auto u : vr) {
        sm+=u.first*u.second, cnt+=u.second;

        int l=0, r=sz-1, res=sz-1;
        while (l <= r) {
            int m=(l+r)/2;
            if (vc[m].first >= cnt) l=m+1, res=m;
            else r=m-1;
        }

        if (pc[res+1] < sm) return false;
    }

    return true;
}

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(NULL);
    cout.tie(NULL);

    vector<pii> vr, vc;
    cin>>r;
    for (int i=1; i<=r; ++i) {
        ll x, val; cin>>val>>x;
        vr.push_back({val, x});   
    } sort(vr.begin(), vr.end(), greater<pii>());

    cin>>c;
    for (int i=1; i<=c; ++i) {
        ll x, val; cin>>val>>x;
        vc.push_back({val, x});
    } sort(vc.begin(), vc.end(), greater<pii>());

    cout<<solve(vr, vc)<<"\n";
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 10
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 0 / 10
• Subtask 6: 0 / 10
• Subtask 7: 0 / 10
• Subtask 8: 0 / 10
• Subtask 9: 0 / 10
• Subtask 10: 0 / 10