Submission #950238

# Submission time Handle Problem Language Result Execution time Memory
950238 2024-03-20T07:11:10 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(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 1372 KB Output is correct
2 Incorrect 10 ms 860 KB Output isn't correct
3 Incorrect 8 ms 860 KB Output isn't correct
4 Correct 12 ms 860 KB Output is correct
5 Correct 21 ms 1116 KB Output is correct
6 Correct 20 ms 1372 KB Output is correct
7 Correct 15 ms 1336 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 460 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 456 KB Output is correct
13 Correct 43 ms 1372 KB Output is correct
14 Incorrect 9 ms 856 KB Output isn't correct
15 Incorrect 11 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 972 KB Output isn't correct
20 Correct 11 ms 860 KB Output is correct
21 Correct 12 ms 860 KB Output is correct
22 Correct 16 ms 860 KB Output is correct
23 Correct 13 ms 908 KB Output is correct
24 Correct 10 ms 860 KB Output is correct
25 Correct 6 ms 900 KB Output is correct
26 Correct 6 ms 860 KB Output is correct
27 Correct 11 ms 1232 KB Output is correct
28 Correct 16 ms 1524 KB Output is correct
29 Incorrect 17 ms 1116 KB Output isn't correct
30 Incorrect 14 ms 860 KB Output isn't correct
31 Correct 10 ms 856 KB Output is correct
32 Incorrect 7 ms 860 KB Output isn't correct
33 Correct 6 ms 860 KB Output is correct
34 Correct 10 ms 1148 KB Output is correct
35 Correct 13 ms 1112 KB Output is correct
36 Correct 15 ms 1116 KB Output is correct
# Verdict Execution time Memory Grader output
1 Execution timed out 2029 ms 120404 KB Time limit exceeded
2 Correct 1525 ms 93296 KB Output is correct
3 Incorrect 916 ms 32940 KB Output isn't correct
4 Execution timed out 2040 ms 120284 KB Time limit exceeded
5 Execution timed out 2013 ms 85328 KB Time limit exceeded
6 Execution timed out 2033 ms 54364 KB Time limit exceeded
7 Execution timed out 2067 ms 103864 KB Time limit exceeded
8 Execution timed out 2033 ms 99156 KB Time limit exceeded
9 Correct 1576 ms 93292 KB Output is correct
10 Incorrect 1752 ms 87528 KB Output isn't correct
# Verdict Execution time Memory Grader output
1 Runtime error 364 ms 524288 KB Execution killed with signal 9
2 Runtime error 311 ms 524288 KB Execution killed with signal 9
3 Runtime error 262 ms 524288 KB Execution killed with signal 9
4 Runtime error 315 ms 524288 KB Execution killed with signal 9
5 Runtime error 264 ms 524288 KB Execution killed with signal 9
6 Runtime error 269 ms 524288 KB Execution killed with signal 9
7 Runtime error 268 ms 524288 KB Execution killed with signal 9
8 Runtime error 263 ms 524288 KB Execution killed with signal 9
9 Runtime error 266 ms 524288 KB Execution killed with signal 9
10 Runtime error 286 ms 524288 KB Execution killed with signal 9
11 Runtime error 246 ms 524288 KB Execution killed with signal 9
12 Runtime error 247 ms 524288 KB Execution killed with signal 9
13 Runtime error 262 ms 524288 KB Execution killed with signal 9
14 Runtime error 249 ms 524288 KB Execution killed with signal 9
15 Runtime error 263 ms 524288 KB Execution killed with signal 9
16 Runtime error 247 ms 524288 KB Execution killed with signal 9
17 Runtime error 253 ms 524288 KB Execution killed with signal 9
18 Runtime error 247 ms 524288 KB Execution killed with signal 9
19 Runtime error 263 ms 524288 KB Execution killed with signal 9
20 Runtime error 249 ms 524288 KB Execution killed with signal 9