Submission #1049478

#	Time	Username	Problem	Language	Result	Execution time	Memory
1049478		Dennis_Jason	Sails (IOI07_sails)	C++14	25 / 100	26 ms	1880 KiB

sails

#include <bitset>
#include <cmath>
#include <functional>
#include <algorithm>
#include <numeric>
#include <deque>
#include <fstream>
#include <iomanip>
#include <iostream>
#include <iterator>
#include <limits>
#include <list>
#include <map>
#include <unordered_map>
#include <queue>
#include <set>
#include <stack>
#include <string>
#include <vector>
#include <cstring>
#include <climits>
#define int long long
#define pb push_back
#define MOD 1000000007
#define NMAX 250001
#define nl '\n'
#define INF 1000000007
#define pii1 pair<int, pair<int,int>>  (1,(1,2));
#define pii pair<int,int>
#define tpl tuple<int,int,int>
using namespace std;
ifstream fin("data.in");
ofstream fout("data.out");
/*
    --------------------DEMONSTRATION---------------------

        3-2
        5-3
        4-1
        2-1
        4-3
        3-2

        subtask 1:1<=n<=15;

        5*(5+1)/2=10;
        1+2+3+4+5=15

    ------------------------END--------------------------

 */

int n,h,k;
int max_h;
vector<pii>v;

void subtask1()
{
    map<int,int>mp;
    for(int i=1;i<=max_h;++i)
    {
        mp[i]=0;
    }
    for(int i=1;i<=n;++i)
    {
        int maxi=v[i].first;
        int cnt=v[i].second;
        vector<int>aux;
        for(auto [x,y]:mp)
        {

            if(x>maxi)
                continue;
            aux.pb(x);
        }
        auto cmp=[&](int a,int b)
        {
            if(mp[a]==mp[b])
                return a>b;
            return mp[a]<mp[b];
        };
        sort(aux.begin(),aux.end(),cmp);
        for(auto x:aux)
        {
            if(!cnt)
                break;
            cnt--;
            mp[x]++;
        }

    }
    int ans=0;
    for(int i=1;i<=max_h;++i)
    {
//        cout<<mp[i]-1<<" ";
        if(mp[i])
        {
            mp[i]--;
            ans+=(mp[i]*(mp[i]+1))/2;
        }
    }
    cout<<ans;
}
signed main() {

    cin>>n;
    v.resize(n+1);
    for(int i=1;i<=n;++i)
    {
        cin>>h>>k;
        v[i]={h,k};
        max_h=max(max_h,h);
    }
    if(n<=15)
    {
        subtask1();
        return 0;
    }
    else
        cout<<0;



    return 0;
}

Compilation message (stderr)

sails.cpp: In function 'void subtask1()':
sails.cpp:69:18: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   69 |         for(auto [x,y]:mp)
      |                  ^

• Subtask 1: 5 / 5
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 0 / 5
• Subtask 5: 0 / 10
• Subtask 6: 0 / 10
• Subtask 7: 0 / 10
• Subtask 8: 0 / 10
• Subtask 9: 0 / 10
• Subtask 10: 0 / 10
• Subtask 11: 0 / 10