oj.uz

Submission #313339

# Submission time Handle Problem Language Result Execution time Memory
313339 2020-10-15T19:43:49 Z neki NLO (COCI18_nlo) C++14
110 / 110
 516 ms 508 KB 
#include <bits/stdc++.h>
#define loop(i, a, b) for(long long i=a;i<b;i++)
#define pool(i, a, b) for(long long i=a-1;i>=b;i--)
#define fore(i, a) for(auto&& i:a)
#define fi first
#define se second
#define ps(a) push_back(a)
#define pb(a) pop_back(a)
#define sc scanf
#define vc vector
#define pa pair<ll, ll>
#define ll long long
#define lb lower_bound
#define ub upper_bound
#define all(a) a.begin(), a.end()
#define llmax LLONG_MAX/2
#define llmin -LLONG_MAX/2
using namespace std;
#define mn 260000
#define pa pair<ll, ll>
#define ld long double 
ll x[mn], y[mn], r[mn];
int main(){
    ll n, m, ans=0;cin >> n>>m;
    ll k;cin >> k;
    loop(i, 2, k+2) cin >> x[i]>>y[i]>>r[i];
    loop(i, 1, n+1){
        vc<pa> ne;
        loop(j, 2, k+2){
            ll temp=r[j] * r[j] - (i-x[j]) * (i-x[j]);
            if(temp>=0){
                temp=sqrt(temp);
                ne.ps(make_pair(max((ll) 1, y[j]-temp), -j));
                ne.ps(make_pair(min(m+1, y[j]+temp+1), j));
            }
        }
        ll act[110];
        loop(j, 0, 110)act[j]=0;
        ne.ps(make_pair(1, -1));
        ne.ps(make_pair(m+1, 1));
        sort(all(ne));
        priority_queue<ll> q;
        loop(v, 0, (ll)((ll)ne.size()-1)){
            if(ne[v].se>0) act[ne[v].se]=0;
            else{
                act[-ne[v].se]=1;
                q.push(-ne[v].se);
            }
            while(q.size() and !act[q.top()])q.pop();
            if(!q.size()) cout << i << endl;
            ans+=(k+1-q.top()) * (ne[v+1].fi - ne[v].fi);
        }
    }
    cout << ans <<endl;
}

Subtask #1
110.0 / 110.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 384 KB Output is correct
2 Correct 9 ms 384 KB Output is correct
3 Correct 8 ms 384 KB Output is correct
4 Correct 39 ms 384 KB Output is correct
5 Correct 30 ms 384 KB Output is correct
6 Correct 218 ms 392 KB Output is correct
7 Correct 95 ms 508 KB Output is correct
8 Correct 387 ms 384 KB Output is correct
9 Correct 173 ms 384 KB Output is correct
10 Correct 516 ms 504 KB Output is correct