Submission #150902

#	Time	Username	Problem	Language	Result	Execution time	Memory
150902		Alexa2001	FunctionCup Museum (FXCUP4_museum)	C++17	100 / 100	91 ms	10360 KiB

museum

#include "museum.h"
#include <bits/stdc++.h>

using namespace std;

const int R = 101;
typedef long long ll;

int cnt[R*R*R+2];

long long CountSimilarPairs(std::vector<int> B, std::vector<int> T, std::vector<int> G)
{
    int n = B.size(), i, j;

    for(i=0; i<n; ++i)
    {
        for(j=1; j<(1<<3); ++j)
        {
            int bb, tt, gg;

            if(j & 1) bb = B[i];
                else bb = 0;

            if(j & 2) tt = T[i];
                else tt = 0;

            if(j & 4) gg = G[i];
                else gg = 0;

            int nr = (R * R * bb) + (R * tt) + gg;
            ++cnt[nr];
        }
    }

    ll ans = 0;

    for(i=1; i<=R*R*R; ++i)
    {
        int cntt = (i/R/R > 0) + (i / R % R > 0) + (i % R > 0);

        if(cntt & 1) ans += (ll) cnt[i] * cnt[i];
            else ans -= (ll) cnt[i] * cnt[i];
    }

    ans -= n;
    ans /= 2;

	return ans;
}

• Subtask 1: 27 / 27
• Subtask 2: 73 / 73