Submission #1175678

#	Time	Username	Problem	Language	Result	Execution time	Memory
1175678		ackhava	Boxes with souvenirs (IOI15_boxes)	C++20	100 / 100	1200 ms	249356 KiB

boxes

#include "boxes.h"
#include <bits/stdc++.h>
#define REP(v, i, j) for (int v = i; v != j; v++)
#define FORI(v) for (auto i : v)
#define FORJ(v) for (auto j : v)

#define OUT(v, a) \
    FORI(v)       \
    cout << i << a;
#define OUTS(v, a, b)      \
    cout << v.size() << a; \
    OUT(v, b)
#define in(a, n) \
    REP(i, 0, n) \
    cin >> a[i];

#define SORT(v) sort(begin(v), end(v))
#define REV(v) reverse(begin(v), end(v))
#define MEMSET(m) memset(m, -1, sizeof m)

#define pb push_back
#define fi first
#define se second

#define detachIO                      \
    ios_base::sync_with_stdio(false); \
    cin.tie(0);                       \
    cout.tie(0);
    
using namespace std;
long long delivery(int N, int K, int L, int p[]) {
    long long streak=0;
    long long ans=0;
    vector<long long> fw, bw;
    REP(i,0,N){
        ans+=p[i]*2;
        if(p[i])fw.pb(p[i]*2),streak++;
    }
    SORT(fw);
    FORI(fw)bw.pb(2*L-i);
    SORT(bw);

    REP(i,0,streak){
        bw[i]=min<long long>(bw[i],L);
        fw[i]=min<long long>(fw[i],L);
    }

    if(K < streak)REP(i,K,streak){
        fw[i]+=fw[i-K];
        bw[i]+=bw[i-K];
    }

    REP(i,0,streak-1){
        ans=min(ans,fw[i]+bw[streak-2-i]);
    }
    ans=min(ans,bw[streak-1]);
    ans=min(ans,fw[streak-1]);

    return ans;
}

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 15 / 15
• Subtask 4: 15 / 15
• Subtask 5: 20 / 20
• Subtask 6: 30 / 30