Submission #754772

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
754772	2023-06-08 13:55:01	Stickfish	Costinland (info1cup19_costinland)	C++17	20 / 100	1 ms	300 KiB

costinland

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#include <iostream>
#include <vector>
#include <bitset>
using namespace std;
void solve_smallk(int k) {
    for (int m = 1; m < (1 << 16); m += 2) {
        vector<bitset<4>> v(4);
        for (int i = 0; i < 4; ++i) for (int j = 0; j < 4; ++j) {
            v[i][j] = m & (1 << (i * 4 + j));
        }
        vector<vector<pair<int, int>>> dp(5, vector<pair<int, int>>(5, {0, 0}));
        dp[0][0] = {1, 0};
        for (int i = 0; i < 4; ++i) for (int j = 0; j < 4; ++j) {
            if (v[i][j]) {
                dp[i + 1][j].first += dp[i][j].first + dp[i][j].second;
                dp[i][j + 1].second += dp[i][j].first + dp[i][j].second;
            } else {
                dp[i + 1][j].first += dp[i][j].first;
                dp[i][j + 1].second += dp[i][j].second;
            }
        }
        int ans = 0;
        for (int i = 0; i < 5; ++i) {
            ans += dp[4][i].first + dp[i][4].second;
        }
        if (ans == k) {
            cout << "5 5\n";
            for (int i = 0; i < 4; ++i) {
                for (int j = 0; j < 4; ++j) {
 
 
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• Subtask 1: 20 / 20
• Subtask 2: 0 / 80