Submission #481986

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
481986	2021-10-22T14:19:04 Z	Lobo	Boxes with souvenirs (IOI15_boxes)	C++17	Compilation error	0 ms	0 KB

boxes

#include <bits/stdc++.h>
 
using namespace std;

const long long INFll = (long long) 1e18 + 10;
const int INFii = (int) 1e9 + 10;
typedef long long ll;
typedef int ii;
typedef long double dbl;
#define endl '\n'
#define sc second
#define fr first
#define mp make_pair
#define pb push_back
#define all(x) x.begin(), x.end()

#define maxn 10000010
 
ll n, kt;
ll dp1[maxn], x1[maxn];
ll dp2[maxn], x2[maxn];

int main() {
    ios::sync_with_stdio(false); cin.tie(0);

    //freopen("in.in", "r", stdin);
    //freopen("out.out", "w", stdout);

    ii N, K, L;
    cin >> N >> K >> L;
    vector<ii> p;
    for(ii i = 0; i < N; i++) {
        ii aa; cin >> aa;
        p.pb(aa);
    }

    ii n1 = 0;
    ii n2 = 0;
    kt = K;
    for(ii i = 1; i <= N; i++) {
        dp1[i] = dp2[i] = -1;
        x1[i] = p[i-1];
        x2[i] = L-x1[i];

        if(x1[i] <= x2[i]) {
            n1++;
        }
        else {
            n2++;
        }
    }

    reverse(x1+1,x1+1+n2);
 
    priority_queue<pair<ll,ll>, vector<pair<ll,ll>>, greater<pair<ll,ll>>> pq1;
    pq1.push(mp(0,0));
    for(ii i = 1; i <= n1; i++) {
        ll ans = INFll;
 
        while(pq1.size() && pq1.top().sc < i-kt) pq1.pop();
 
        ans = pq1.top().fr;
 
        dp1[i] = ans + 2*x1[i];
 
        pq1.push(mp(dp1[i],i));
    }
 
    priority_queue<pair<ll,ll>, vector<pair<ll,ll>>, greater<pair<ll,ll>>> pq2;
    pq2.push(mp(0,0));
    for(ii i = 1; i <= n2; i++) {
        ll ans = INFll;
        
        while(pq2.size() && pq2.top().sc < i-kt) pq2.pop();
 
        ans = pq2.top().fr;
 
        dp2[i] = ans + 2*x2[i];
        
        pq2.push(mp(dp2[i],i));
    }
 
    ll ans = dp1[n1]+dp2[n2];
    for(ii i1 = n1-kt, i2 = n2; i1 <= n1; i1++, i2--) {
        ans = min(ans, dp1[i1] + dp2[i2] + L);
    }

    cout << ans << endl;

}

Compilation message

boxes.cpp: In function 'int main()':
boxes.cpp:84:19: warning: conversion from 'll' {aka 'long long int'} to 'ii' {aka 'int'} may change value [-Wconversion]
   84 |     for(ii i1 = n1-kt, i2 = n2; i1 <= n1; i1++, i2--) {
      |                 ~~^~~
/usr/bin/ld: /tmp/ccCReNsB.o: in function `main':
grader.c:(.text.startup+0x0): multiple definition of `main'; /tmp/ccPs6S9A.o:boxes.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccCReNsB.o: in function `main':
grader.c:(.text.startup+0x1ef): undefined reference to `delivery(int, int, int, int*)'
collect2: error: ld returned 1 exit status