oj.uz

Submission #739467

# Submission time Handle Problem Language Result Execution time Memory
739467 2023-05-10T13:40:33 Z GrindMachine Popeala (CEOI16_popeala) C++17
100 / 100
 1600 ms 27872 KB 
// Om Namah Shivaya

#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) 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, t, s; cin >> n >> t >> s;
    vector<ll> a(t + 5);
    rep1(i, t) cin >> a[i];

    vector<ll> p(t + 5);
    rep1(i, t) p[i] = p[i - 1] + a[i];

    ll b[n + 5][t + 5];

    rep1(i, n) {
        rep1(j, t) {
            char ch; cin >> ch;
            b[i][j] = ch - '0';
        }
    }

    ll prev_bad[n + 5][t + 5];
    memset(prev_bad, -1, sizeof prev_bad);

    rep1(i, n) {
        rep1(j, t) {
            if (!b[i][j]) {
                prev_bad[i][j] = j;
            }
            else {
                prev_bad[i][j] = prev_bad[i][j - 1];
            }
        }
    }

    vector<ll> dp1(t + 5, inf2), dp2(t + 5, inf2);
    dp1[0] = 0;

    ll prefmn[t + 5][n + 5];

    rep1(iter, s) {
        memset(prefmn, 0x10, sizeof prefmn);
        rep(i, t + 1) {
            rep(g, n + 1) {
                ll val = dp1[i] - g * p[i];
                if (i) prefmn[i][g] = min(prefmn[i - 1][g], val);
                else prefmn[i][g] = val;
            }
        }

        rep1(i, t) {
            vector<ll> change;

            rep1(j, n) {
                ll pos = prev_bad[j][i];
                if (pos != -1) {
                    change.pb(pos - 1);
                }
            }

            sort(rall(change));
            ll g = n;

            amin(dp2[i], g * p[i] + prefmn[i - 1][g]);

            trav(pos, change) {
                g--;
                ll val = g * p[i] + prefmn[pos][g];
                amin(dp2[i], val);
            }
        }

        ll ans = dp2[t];
        cout << ans << endl;

        dp1 = dp2;
        fill(all(dp2), inf2);
    }
}

int main()
{
    fastio;

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

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

    return 0;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 980 KB Output is correct
2 Correct 31 ms 852 KB Output is correct
3 Correct 35 ms 980 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 210 ms 3116 KB Output is correct
2 Correct 267 ms 4276 KB Output is correct
3 Correct 297 ms 5588 KB Output is correct

Subtask #4
74.0 / 74.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 44 ms 980 KB Output is correct
4 Correct 31 ms 852 KB Output is correct
5 Correct 35 ms 980 KB Output is correct
6 Correct 210 ms 3116 KB Output is correct
7 Correct 267 ms 4276 KB Output is correct
8 Correct 297 ms 5588 KB Output is correct
9 Correct 376 ms 8920 KB Output is correct
10 Correct 678 ms 11552 KB Output is correct
11 Correct 1068 ms 25848 KB Output is correct
12 Correct 1250 ms 27860 KB Output is correct
13 Correct 1600 ms 27860 KB Output is correct
14 Correct 1529 ms 27872 KB Output is correct
15 Correct 1454 ms 27860 KB Output is correct