Submission #1117545

#	Time	Username	Problem	Language	Result	Execution time	Memory
1117545		heeheeheehaaw	Nile (IOI24_nile)	C++17	67 / 100	2049 ms	14180 KiB

nile

#include <iostream>
#include <fstream>
#include <vector>
#include <cmath>
#include <algorithm>
#include "nile.h"
using namespace std;

struct art
{
    long long w,a,b;
};

bool compare(art a,art b)
{
    return a.w<b.w;
}

vector<art> artifact;

long long sol(vector<art> v,long long d)
{
    long long price=0;
    for(long long i=0;i<v.size();i++)
    {
        price+=v[i].b;
    }
    if((int)v.size()%2==0)
        return price;
    long long minn=999999999999999999;
    for(long long i=0;i<v.size();i++)
    {
        if(((i==0) or (i==((int)v.size()-1))) or (abs(v[i - 1].w-v[i + 1].w)<=d) or (((i + 1) % 2) == 1))
            minn=min(minn,(long long)(v[i].a-v[i].b));
    }
    return price+minn;
}

vector<long long> calculate_costs(vector<int> W, vector<int> A, vector<int> B, vector<int> E)
{
    long long n = W.size();
    for(long long i=0;i<n;i++)
    {
        art x;
        x.w = W[i];
        x.a = A[i];
        x.b = B[i];
        artifact.push_back(x);
    }
    sort(artifact.begin(),artifact.end(),compare);
    long long q = E.size();
    long long price=0;
    vector<long long> R;
    for(long long matale = 0; matale < q; matale++)
    {
        price=0;
        long long d = E[matale];
        vector<art> v;
        v.push_back(artifact[0]);
        for(long long i=1;i<artifact.size();i++)
        {
            if(abs(artifact[i-1].w-artifact[i].w)<=d)
                v.push_back(artifact[i]);
            else
                price+=sol(v,d),v.clear(),v.push_back(artifact[i]);

        }
        price+=sol(v,d);
        R.push_back(price);
    }

    return R;

}

/*

5
15 5 1
12 4 2
2 5 2
10 6 3
21 3 2
3
5 9 1

*/

Compilation message (stderr)

nile.cpp: In function 'long long int sol(std::vector<art>, long long int)':
nile.cpp:24:24: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<art>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |     for(long long i=0;i<v.size();i++)
      |                       ~^~~~~~~~~
nile.cpp:31:24: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<art>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |     for(long long i=0;i<v.size();i++)
      |                       ~^~~~~~~~~
nile.cpp: In function 'std::vector<long long int> calculate_costs(std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
nile.cpp:60:28: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<art>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   60 |         for(long long i=1;i<artifact.size();i++)
      |                           ~^~~~~~~~~~~~~~~~

• Subtask 0: 0 / 0
• Subtask 1: 6 / 6
• Subtask 2: 13 / 13
• Subtask 3: 17 / 17
• Subtask 4: 11 / 11
• Subtask 5: 20 / 20
• Subtask 6: 0 / 15
• Subtask 7: 0 / 18