oj.uz

답안 #725837

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
725837 2023-04-18T07:17:03 Z YugiHacker Jetpack (COCI16_jetpack) C++14
80 / 80
 28 ms 6612 KB 
/*
	www.youtube.com/YugiHackerChannel
	oj.vnoi.info/user/YugiHackerKhongCopCode
*/
#include<bits/stdc++.h>
#define el cout<<"\n"
#define f0(i,n) for(int i=0;i<n;++i)
#define f1(i,n) for(int i=1;i<=n;++i)
#define maxn 100005
#define pii pair<int,int>
#define fi first
#define se second
using namespace std;
int n, d[12][maxn], r;
char a[12][maxn];
queue <pii> q;
main()
{
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    cin >> n;
    f1 (i, 10) f1 (j, n) cin >> a[i][j];
    q.push({10, 1});
    while (q.size())
    {
        int u = q.front().fi, v = q.front().se;
        if (v == n) r = u;
        q.pop();
        int u_up = max(1, u-1);
        int u_down = min(10, u+1);
        if (a[u_up][v+1] == '.' && d[u_up][v+1] == 0)
        {
            q.push({u_up, v+1});
            d[u_up][v+1] = u;
        }
        if (a[u_down][v+1] == '.' && d[u_down][v+1] == 0)
        {
            q.push({u_down, v+1});
            d[u_down][v+1] = u;
        }
    }
    //f1 (i, 10) {f1 (j, n) if (d[i][j]) cout << '*'; else cout << '.'; el;}
    vector <pii> ans;
    for (int i=n; i; i--)
    {
        int cnt = 0;
        //cout << r << ' ' << i, el;
        while (d[r][i] == r+1 || (r == 1  && d[r][i] == 1))
        {
            ++cnt;
            r = d[r][i];
            //cout << r << ' ' << i, el;
            i--;
        }
        if (cnt) ans.push_back({i-1, cnt});
        r = d[r][i];
    }
    reverse(ans.begin(), ans.end());
    cout << ans.size(), el;
    for (auto p:ans) cout << p.fi << ' ' << p.se, el;
}

Compilation message

jetpack.cpp:17:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   17 | main()
      | ^~~~

Subtask #1
80.0 / 80.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 388 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 2 ms 596 KB Output is correct
6 Correct 3 ms 724 KB Output is correct
7 Correct 6 ms 1492 KB Output is correct
8 Correct 14 ms 3312 KB Output is correct
9 Correct 22 ms 4756 KB Output is correct
10 Correct 28 ms 6612 KB Output is correct