Submission #950251

# Submission time Handle Problem Language Result Execution time Memory
950251 2024-03-20T07:20:58 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-1,k); ++x){
                    amin(dp[x][p[k]],dp[i][j]+2+cnt+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 43 ms 1372 KB Output is correct
2 Incorrect 10 ms 860 KB Output isn't correct
3 Incorrect 9 ms 860 KB Output isn't correct
4 Correct 12 ms 1052 KB Output is correct
5 Correct 17 ms 860 KB Output is correct
6 Correct 19 ms 1436 KB Output is correct
7 Correct 15 ms 1368 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 600 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 42 ms 1372 KB Output is correct
14 Incorrect 11 ms 856 KB Output isn't correct
15 Incorrect 9 ms 1112 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 10 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 13 ms 1112 KB Output is correct
22 Correct 16 ms 860 KB Output is correct
23 Correct 13 ms 856 KB Output is correct
24 Correct 11 ms 864 KB Output is correct
25 Correct 6 ms 896 KB Output is correct
26 Correct 6 ms 984 KB Output is correct
27 Correct 11 ms 1236 KB Output is correct
28 Correct 16 ms 1372 KB Output is correct
29 Incorrect 16 ms 1112 KB Output isn't correct
30 Incorrect 16 ms 860 KB Output isn't correct
31 Correct 10 ms 860 KB Output is correct
32 Incorrect 7 ms 860 KB Output isn't correct
33 Correct 7 ms 1028 KB Output is correct
34 Correct 10 ms 1144 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 2027 ms 120144 KB Time limit exceeded
2 Correct 1594 ms 93284 KB Output is correct
3 Incorrect 930 ms 32936 KB Output isn't correct
4 Execution timed out 2028 ms 120400 KB Time limit exceeded
5 Execution timed out 2021 ms 85332 KB Time limit exceeded
6 Execution timed out 2061 ms 54364 KB Time limit exceeded
7 Execution timed out 2064 ms 103944 KB Time limit exceeded
8 Execution timed out 2037 ms 99152 KB Time limit exceeded
9 Correct 1654 ms 93268 KB Output is correct
10 Incorrect 1815 ms 87528 KB Output isn't correct
# Verdict Execution time Memory Grader output
1 Runtime error 278 ms 524288 KB Execution killed with signal 9
2 Runtime error 243 ms 524288 KB Execution killed with signal 9
3 Runtime error 247 ms 524288 KB Execution killed with signal 9
4 Runtime error 252 ms 524288 KB Execution killed with signal 9
5 Runtime error 283 ms 524288 KB Execution killed with signal 9
6 Runtime error 270 ms 524288 KB Execution killed with signal 9
7 Runtime error 240 ms 524288 KB Execution killed with signal 9
8 Runtime error 276 ms 524288 KB Execution killed with signal 9
9 Runtime error 241 ms 524288 KB Execution killed with signal 9
10 Runtime error 249 ms 524288 KB Execution killed with signal 9
11 Runtime error 258 ms 524288 KB Execution killed with signal 9
12 Runtime error 281 ms 524288 KB Execution killed with signal 9
13 Runtime error 254 ms 524288 KB Execution killed with signal 9
14 Runtime error 245 ms 524288 KB Execution killed with signal 9
15 Runtime error 248 ms 524288 KB Execution killed with signal 9
16 Runtime error 243 ms 524288 KB Execution killed with signal 9
17 Runtime error 251 ms 524288 KB Execution killed with signal 9
18 Runtime error 259 ms 524288 KB Execution killed with signal 9
19 Runtime error 243 ms 524288 KB Execution killed with signal 9
20 Runtime error 246 ms 524288 KB Execution killed with signal 9