oj.uz

Submission #843967

# Submission time Handle Problem Language Result Execution time Memory
843967 2023-09-04T18:14:57 Z Dextar Catfish Farm (IOI22_fish) C++17
61 / 100
 737 ms 713296 KB 
#include <cstdio>
#ifdef DEBUG
    #define D(X) X
#else
    #define D(X)
#endif
#include <bits/stdc++.h>
#define F first
#define S second
#define ll long long
#define pi 3.14159265359
#define pub push_back
#define pob pop_back
#define pari pair<int,int>
#define parli pair<long, long>

using namespace std;
/*
4 8
1 1 1 1 0 0 0 0
0 1 2 3 0 1 2 3
1 3 1 4 2 5 1 1
*/

const int INF = 1000 * 1000 * 1000;
const int mod = 1000 * 1000 * 1000 + 7;

ll max_weights(int n, int m, vector<int> x, vector<int> y, vector<int> w)
{
    vector<vector<ll>> cnt2(3, vector<ll>(n+1, 0));
    vector<vector<ll>> cnt3(n+1, vector<ll>(3, 0));
    int odd = 0, mx = 0, mxy = 0;
    ll all = 0;
    for(int i=0; i<m; i++) {
        if(x[i]%2==1) {
            odd = 1;
        }
        if(x[i]<=1)
        cnt2[x[i]][y[i]+1] += w[i];
        if(y[i]==0) {
            cnt3[x[i]][y[i]+1] += w[i];
        }
        all += w[i];
        mx = max(mx, x[i]);
        mxy = max(mxy, y[i]);
    }
    if(!odd) {
        return all;
    }
    for(int i=0; i<2; i++) {
        for(int j=1; j<=n; j++) {
            cnt2[i][j] += cnt2[i][j-1];
        }
    }
    /*
    for(int i=0; i<2; i++) {
        for(int j=0; j<=n; j++) {
            cout<<cnt2[i][j]<<" ";
        }
        cout<<endl;
    } */
    if(mx<=1) {
        if(n==2) {
            return max(cnt2[0][n], cnt2[1][n]);
        } else
        {
            ll res = cnt2[1][n], best = res;
            for(int j=1; j<=n; j++) {
                best = max(best, res+cnt2[0][j]-cnt2[1][j]);
                //cout<<res<<" "<<cnt2[0][j]<<" "<<
            }
            return best;
        }
    }
    if(mxy==0) {
        vector<vector<ll>> dp(n+7, vector<ll>(2,0));
        for(int i=n-1; i>=0; i--) {
            dp[i][0] = max(dp[i+1][0], dp[i+1][1] + cnt3[i][1]);
            dp[i][1] = max(dp[i+1][1], max(dp[i+1][0], dp[i+2][0]+cnt3[i+1][1]));
        }
        return max(dp[0][0], dp[0][1]);
    }
    vector<vector<ll>> cnt(n + 1, vector<ll>(n+1, 0));
    for(int i=0; i<m; i++) {
        cnt[x[i]][y[i]+1] += w[i];
    }
    for(int i=0; i<n; i++) {
        for(int j=1; j<=n; j++) {
            cnt[i][j] += cnt[i][j-1];
        }
    }
    vector<vector<ll>> pref(n+1, vector<ll>(n+1, 0));
    vector<vector<ll>> suf(n+1, vector<ll>(n+1, 0));
    vector<vector<vector<ll>>> dp(n+1, vector<vector<ll>>(n+1, vector<ll>(2, 0)));
    ll res = 0;
    for(int i=1; i<n; i++) {
        if(i==1) {
            pref[i-1][0] = 0;
        } else
        {
            pref[i-1][0] = dp[i-2][0][0];
        }
        for(int j=1; j<=n; j++) {
            pref[i-1][j] = max(pref[i-1][j-1], dp[i-1][j][1] - cnt[i-1][j]);
        }
        suf[i-1][n] = cnt[i][n] + max(dp[i-1][n][0], dp[i-1][n][1]);
        for(int j=n-1; j>=1; j--) {
            suf[i-1][j] = max(suf[i-1][j+1], max(dp[i-1][j][0], dp[i-1][j][1]) + cnt[i][j]);
        }
        dp[i][0][0] = dp[i][0][1] = max(suf[i-1][1], dp[i-1][0][0]);
        for(int j=1; j<=n; j++) {
            dp[i][j][0] = suf[i-1][j] - cnt[i][j];
            dp[i][j][1] = cnt[i-1][j] + pref[i-1][j];
            if(i>1) {
                dp[i][j][1] = max(dp[i][j][1], cnt[i-1][j]+pref[i-2][j]);
                dp[i][j][1] = max(dp[i][j][1], suf[i-2][j]);
            }
            //res = max(res, max(dp[i][j][0], dp[i][j][1]));
        }
    }
    for(int i=0; i<n; i++)
    for(int j=0; j<=n; j++) {
        for(int bin=0; bin<2; bin++)
            res = max(res, dp[i][j][bin]);
    }
    return res;
}

/*
int main()
{
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    D(freopen("input.txt","r",stdin);)
    //D(freopen("ouput.txt","w",stdout);)
    int t = 1;
    //cin >> t;
    loop:
    while(t--)
    {
        int n, m;
        cin >> n >> m;
        vector<int> x(m), y(m), w(m);
        for(int i=0; i<m; i++) {
            cin >> x[i];
        }
        for(int i=0; i<m; i++) {
            cin >> y[i];
        }
        for(int i=0; i<m; i++) {
            cin >> w[i];
        }
        ll res = max_weights(n, m, x, y, w);
        cout << res;
    }
    return 0;
}
*/

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 9360 KB Output is correct
2 Correct 27 ms 10568 KB Output is correct
3 Correct 6 ms 8264 KB Output is correct
4 Correct 6 ms 8464 KB Output is correct
5 Correct 74 ms 15168 KB Output is correct
6 Correct 73 ms 15192 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 42 ms 11152 KB Output is correct
3 Correct 53 ms 12744 KB Output is correct
4 Correct 23 ms 9368 KB Output is correct
5 Correct 26 ms 10564 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 6 ms 8264 KB Output is correct
11 Correct 6 ms 8268 KB Output is correct
12 Correct 23 ms 9368 KB Output is correct
13 Correct 28 ms 10560 KB Output is correct
14 Correct 23 ms 9356 KB Output is correct
15 Correct 26 ms 10316 KB Output is correct
16 Correct 23 ms 9368 KB Output is correct
17 Correct 25 ms 10312 KB Output is correct

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 8264 KB Output is correct
2 Correct 16 ms 13640 KB Output is correct
3 Correct 23 ms 14480 KB Output is correct
4 Correct 20 ms 15168 KB Output is correct
5 Incorrect 33 ms 17472 KB 1st lines differ - on the 1st token, expected: '1673106170551', found: '1673122841934'
6 Halted 0 ms 0 KB -

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 356 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 544 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 2 ms 2136 KB Output is correct
10 Correct 7 ms 7516 KB Output is correct
11 Correct 2 ms 2140 KB Output is correct
12 Correct 6 ms 7516 KB Output is correct
13 Correct 1 ms 856 KB Output is correct
14 Correct 7 ms 7512 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 356 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 544 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 2 ms 2136 KB Output is correct
10 Correct 7 ms 7516 KB Output is correct
11 Correct 2 ms 2140 KB Output is correct
12 Correct 6 ms 7516 KB Output is correct
13 Correct 1 ms 856 KB Output is correct
14 Correct 7 ms 7512 KB Output is correct
15 Correct 6 ms 7512 KB Output is correct
16 Correct 1 ms 856 KB Output is correct
17 Correct 16 ms 8548 KB Output is correct
18 Correct 16 ms 8536 KB Output is correct
19 Correct 16 ms 8536 KB Output is correct
20 Correct 16 ms 8536 KB Output is correct
21 Correct 16 ms 8536 KB Output is correct
22 Correct 29 ms 9704 KB Output is correct
23 Correct 8 ms 7768 KB Output is correct
24 Correct 13 ms 8280 KB Output is correct
25 Correct 7 ms 7512 KB Output is correct
26 Correct 8 ms 7768 KB Output is correct

Subtask #6
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 356 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 544 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 2 ms 2136 KB Output is correct
10 Correct 7 ms 7516 KB Output is correct
11 Correct 2 ms 2140 KB Output is correct
12 Correct 6 ms 7516 KB Output is correct
13 Correct 1 ms 856 KB Output is correct
14 Correct 7 ms 7512 KB Output is correct
15 Correct 6 ms 7512 KB Output is correct
16 Correct 1 ms 856 KB Output is correct
17 Correct 16 ms 8548 KB Output is correct
18 Correct 16 ms 8536 KB Output is correct
19 Correct 16 ms 8536 KB Output is correct
20 Correct 16 ms 8536 KB Output is correct
21 Correct 16 ms 8536 KB Output is correct
22 Correct 29 ms 9704 KB Output is correct
23 Correct 8 ms 7768 KB Output is correct
24 Correct 13 ms 8280 KB Output is correct
25 Correct 7 ms 7512 KB Output is correct
26 Correct 8 ms 7768 KB Output is correct
27 Correct 655 ms 706464 KB Output is correct
28 Correct 87 ms 49748 KB Output is correct
29 Correct 721 ms 713048 KB Output is correct
30 Correct 727 ms 713296 KB Output is correct
31 Correct 736 ms 713124 KB Output is correct
32 Correct 85 ms 31060 KB Output is correct
33 Correct 718 ms 713040 KB Output is correct
34 Correct 732 ms 713204 KB Output is correct
35 Correct 690 ms 708688 KB Output is correct
36 Correct 737 ms 713296 KB Output is correct

Subtask #7
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 8264 KB Output is correct
2 Correct 16 ms 13640 KB Output is correct
3 Correct 23 ms 14480 KB Output is correct
4 Correct 20 ms 15168 KB Output is correct
5 Incorrect 33 ms 17472 KB 1st lines differ - on the 1st token, expected: '1673106170551', found: '1673122841934'
6 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 9360 KB Output is correct
2 Correct 27 ms 10568 KB Output is correct
3 Correct 6 ms 8264 KB Output is correct
4 Correct 6 ms 8464 KB Output is correct
5 Correct 74 ms 15168 KB Output is correct
6 Correct 73 ms 15192 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 42 ms 11152 KB Output is correct
9 Correct 53 ms 12744 KB Output is correct
10 Correct 23 ms 9368 KB Output is correct
11 Correct 26 ms 10564 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 6 ms 8264 KB Output is correct
17 Correct 6 ms 8268 KB Output is correct
18 Correct 23 ms 9368 KB Output is correct
19 Correct 28 ms 10560 KB Output is correct
20 Correct 23 ms 9356 KB Output is correct
21 Correct 26 ms 10316 KB Output is correct
22 Correct 23 ms 9368 KB Output is correct
23 Correct 25 ms 10312 KB Output is correct
24 Correct 6 ms 8264 KB Output is correct
25 Correct 16 ms 13640 KB Output is correct
26 Correct 23 ms 14480 KB Output is correct
27 Correct 20 ms 15168 KB Output is correct
28 Incorrect 33 ms 17472 KB 1st lines differ - on the 1st token, expected: '1673106170551', found: '1673122841934'
29 Halted 0 ms 0 KB -