Submission #360488

#	Time	Username	Problem	Language	Result	Execution time	Memory
360488		beksultan04	Meetings (IOI18_meetings)	C++14	0 / 100	5568 ms	399900 KiB

meetings

#include "meetings.h"
#ifndef EVAL
#include "grader.cpp"
#endif // EVAL
#include <bits/stdc++.h>
using namespace std;
#define lol long long
#define pii pair<int,int>
#define OK puts("OK");
#define NO puts("NO");
#define YES puts("YES");
#define fr first
#define sc second
#define ret return
#define scanl(a) scanf("%lld",&a);
#define scanll(a,b) scanf("%lld %lld",&a, &b);
#define scanlll(a,b,c) scanf("%lld %lld %lld",&a,&b,&c);
#define scan1(a) scanf("%d",&a);
#define scan2(a,b) scanf("%d %d",&a, &b);
#define scan3(a,b,c) scanf("%d %d %d",&a,&b,&c);
#define all(s) s.begin(),s.end()
#define allr(s) s.rbegin(),s.rend()
#define pb push_back
#define sz(v) (int)v.size()
#define endi puts("");
#define eps 1e-12

lol dis[5001][5001],mx[5001][5001];

vector<lol> minimum_costs(vector<int> H, vector<int> L,vector<int> R) {
    int i,j,k,n = H.size(),Q = L.size();
    vector<lol> C(Q);
    set <pii> s;
    for (i=0;i<n;++i){
        for (j=0;j<n;++j){
            dis[i][j]=1e15+7;
        }
    }
    for (i=0;i<n;++i){
        s.insert({i,i});
        dis[i][i] = H[i];
        mx[i][i] = H[i];
    }

    while (!s.empty()){
        int l = s.begin()->fr;
        int r = s.begin()->sc;
        s.erase(s.begin());
        if (l > 0){
            mx[l-1][r] = max(mx[l-1][r],H[l-1]*1ll);
            if (dis[l-1][r] > dis[l][r]+mx[l-1][r]){
                dis[l-1][r] = dis[l][r]+mx[l-1][r];
                s.insert({l-1,r});
            }
        }
        if (r+1 < n){
            mx[l][r+1] = max(mx[l][r],H[r+1]*1ll);
            if (dis[l][r+1] > dis[l][r]+mx[l][r+1]){
                dis[l][r+1] = dis[l][r]+mx[l][r+1];
                s.insert({l,r+1});
            }
        }
    }


    for (j = 0; j < Q; ++j)
        C[j] = dis[L[j]][R[j]];

    return C;
}

Compilation message (stderr)

meetings.cpp: In function 'std::vector<long long int> minimum_costs(std::vector<int>, std::vector<int>, std::vector<int>)':
meetings.cpp:31:13: warning: unused variable 'k' [-Wunused-variable]
   31 |     int i,j,k,n = H.size(),Q = L.size();
      |             ^

• Subtask 1: 0 / 4
• Subtask 2: 0 / 15
• Subtask 3: 0 / 17
• Subtask 4: 0 / 24
• Subtask 5: 0 / 40