Submission #950242

# Submission time Handle Problem Language Result Execution time Memory
950242 2024-03-20T07:13:03 Z GrindMachine Vim (BOI13_vim) C++17
39.5 / 100
2000 ms 524288 KB
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

using namespace std;
using namespace __gnu_pbds;

template<typename T> using Tree = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
typedef long long int ll;
typedef long double ld;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;

#define fastio ios_base::sync_with_stdio(false); cin.tie(NULL)
#define pb push_back
#define endl '\n'
#define sz(a) (int)a.size()
#define setbits(x) __builtin_popcountll(x)
#define ff first
#define ss second
#define conts continue
#define ceil2(x,y) ((x+y-1)/(y))
#define all(a) a.begin(), a.end()
#define rall(a) a.rbegin(), a.rend()
#define yes cout << "Yes" << endl
#define no cout << "No" << endl

#define rep(i,n) for(int i = 0; i < n; ++i)
#define rep1(i,n) for(int i = 1; i <= n; ++i)
#define rev(i,s,e) for(int i = s; i >= e; --i)
#define trav(i,a) for(auto &i : a)

template<typename T>
void amin(T &a, T b) {
    a = min(a,b);
}

template<typename T>
void amax(T &a, T b) {
    a = max(a,b);
}

#ifdef LOCAL
#include "debug.h"
#else
#define debug(x) 42
#endif

/*



*/

const int MOD = 1e9 + 7;
const int N = 1e5 + 5;
const int inf1 = int(1e9) + 5;
const ll inf2 = ll(1e18) + 5;

void solve(int test_case)
{
    ll n; cin >> n;
    string s; cin >> s;
    s = "$" + s;

    ll nxt[n+5][10];
    memset(nxt,0x3f,sizeof nxt);
    array<ll,10> closest;
    closest.fill(inf2);

    rev(i,n,1){
        rep(j,10){
            nxt[i][j] = closest[j];
        }
        closest[s[i]-'a'] = i;
    }

    vector<ll> p(n+5);
    rep1(i,n) p[i] = p[i-1]+(s[i] == 'e');
    ll m = p[n];

    vector<ll> pos;
    pos.pb(0);
    rep1(i,n){
        if(s[i] == 'e'){
            pos.pb(i);
        }
    }

    ll dp[n+5][m+5];
    memset(dp,0x3f,sizeof dp);
    dp[1][0] = 0;

    rep1(i,n){
        rep(j,m){
            rep(ch,10){
                if(ch == 4) conts;
                // if(dp[i][j]) conts;

                ll k = nxt[i][ch];
                if(k > n) conts;

                ll first_new = pos[j+1];
                ll cnt = 0;
                if(first_new <= k){
                    cnt = p[k]-p[first_new-1];
                }

                for(int x = i; x <= min(first_new,k); ++x){
                    amin(dp[x][p[k]],dp[i][j]+2+cnt*2+k-x);
                }

                bool dbg = false;
                if(i == 4 and j == 2 and ch == 5){
                    // dbg = true;
                }

                if(cnt and first_new+1 <= k){
                    ll x = first_new+1;
                    ll two_cnt = cnt-1;
                    ll one_cnt = k-(x-1)+1-two_cnt;
                    amin(dp[x][p[k]],dp[i][j]+2+2*two_cnt+one_cnt);

                    if(dbg){
                        debug(one_cnt);
                        debug(two_cnt);
                    }

                    // if(x == 10 and p[k] == 3){
                    //     if(dp[i][j]+2+2*two_cnt+one_cnt == 12){
                    //         debug(i);
                    //         debug(j);
                    //         debug(ch);
                    //         debug(dp[i][j]);
                    //     }
                    // }
                }
            }
        }
    }

    // debug(dp[10][3]);

    ll ans = inf2;
    rep1(i,n){
        amin(ans,dp[i][m]);
    }

    cout << ans << endl;
}

int main()
{
    fastio;

    int t = 1;
    // cin >> t;

    rep1(i, t) {
        solve(i);
    }

    return 0;
}

Compilation message

vim.cpp: In function 'void solve(int)':
vim.cpp:46:18: warning: statement has no effect [-Wunused-value]
   46 | #define debug(x) 42
      |                  ^~
vim.cpp:125:25: note: in expansion of macro 'debug'
  125 |                         debug(one_cnt);
      |                         ^~~~~
vim.cpp:46:18: warning: statement has no effect [-Wunused-value]
   46 | #define debug(x) 42
      |                  ^~
vim.cpp:126:25: note: in expansion of macro 'debug'
  126 |                         debug(two_cnt);
      |                         ^~~~~
# Verdict Execution time Memory Grader output
1 Correct 40 ms 1368 KB Output is correct
2 Incorrect 10 ms 1116 KB Output isn't correct
3 Incorrect 8 ms 1012 KB Output isn't correct
4 Correct 11 ms 856 KB Output is correct
5 Correct 16 ms 860 KB Output is correct
6 Correct 15 ms 1372 KB Output is correct
7 Correct 16 ms 1116 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 40 ms 1368 KB Output is correct
14 Incorrect 10 ms 860 KB Output isn't correct
15 Incorrect 8 ms 860 KB Output isn't correct
16 Incorrect 10 ms 860 KB Output isn't correct
17 Correct 14 ms 860 KB Output is correct
18 Correct 9 ms 860 KB Output is correct
19 Incorrect 10 ms 860 KB Output isn't correct
20 Correct 11 ms 856 KB Output is correct
21 Correct 11 ms 860 KB Output is correct
22 Correct 16 ms 860 KB Output is correct
23 Correct 12 ms 860 KB Output is correct
24 Correct 10 ms 860 KB Output is correct
25 Correct 8 ms 856 KB Output is correct
26 Correct 6 ms 988 KB Output is correct
27 Correct 12 ms 1368 KB Output is correct
28 Correct 19 ms 1372 KB Output is correct
29 Incorrect 21 ms 1372 KB Output isn't correct
30 Incorrect 14 ms 1008 KB Output isn't correct
31 Correct 10 ms 856 KB Output is correct
32 Incorrect 7 ms 980 KB Output isn't correct
33 Correct 6 ms 860 KB Output is correct
34 Correct 10 ms 1112 KB Output is correct
35 Correct 13 ms 1272 KB Output is correct
36 Correct 14 ms 1116 KB Output is correct
# Verdict Execution time Memory Grader output
1 Execution timed out 2067 ms 120404 KB Time limit exceeded
2 Correct 1495 ms 93288 KB Output is correct
3 Incorrect 909 ms 32944 KB Output isn't correct
4 Execution timed out 2032 ms 120400 KB Time limit exceeded
5 Execution timed out 2052 ms 85384 KB Time limit exceeded
6 Execution timed out 2045 ms 54364 KB Time limit exceeded
7 Execution timed out 2040 ms 103856 KB Time limit exceeded
8 Execution timed out 2050 ms 99164 KB Time limit exceeded
9 Correct 1508 ms 93292 KB Output is correct
10 Incorrect 1756 ms 87532 KB Output isn't correct
# Verdict Execution time Memory Grader output
1 Runtime error 284 ms 524288 KB Execution killed with signal 9
2 Runtime error 254 ms 524288 KB Execution killed with signal 9
3 Runtime error 256 ms 524288 KB Execution killed with signal 9
4 Runtime error 247 ms 524288 KB Execution killed with signal 9
5 Runtime error 249 ms 524288 KB Execution killed with signal 9
6 Runtime error 260 ms 524288 KB Execution killed with signal 9
7 Runtime error 257 ms 524288 KB Execution killed with signal 9
8 Runtime error 243 ms 524288 KB Execution killed with signal 9
9 Runtime error 249 ms 524288 KB Execution killed with signal 9
10 Runtime error 242 ms 524288 KB Execution killed with signal 9
11 Runtime error 247 ms 524288 KB Execution killed with signal 9
12 Runtime error 245 ms 524288 KB Execution killed with signal 9
13 Runtime error 245 ms 524288 KB Execution killed with signal 9
14 Runtime error 252 ms 524288 KB Execution killed with signal 9
15 Runtime error 247 ms 524288 KB Execution killed with signal 9
16 Runtime error 250 ms 524288 KB Execution killed with signal 9
17 Runtime error 240 ms 524288 KB Execution killed with signal 9
18 Runtime error 242 ms 524288 KB Execution killed with signal 9
19 Runtime error 242 ms 524288 KB Execution killed with signal 9
20 Runtime error 244 ms 524288 KB Execution killed with signal 9