oj.uz

Submission #660749

# Submission time Handle Problem Language Result Execution time Memory
660749 2022-11-23T06:38:29 Z mychecksedad Catfish Farm (IOI22_fish) C++17
9 / 100
 91 ms 7356 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;
#define pb push_back
const int S = 1e5 + 100;


ll dp[S][2], a[S][2], suf[S];
long long max_weights(int n, int m, std::vector<int> x, std::vector<int> y, std::vector<int> w){  
    bool case1 = 1, case2 = 1, case3 = 1;
    for(int i = 0; i < m; ++i){
        if(x[i] % 2) case1 = 0;
        if(x[i] > 1) case2 = 0;
        if(y[i] != 0) case3 = 0;
    }
    if(case1){
        ll ans = 0;
        for(int i = 0; i < m; ++i) ans += w[i];
        return ans;
    }
    if(case2){
        ll ans1 = 0, ans2 = 0;

        for(int i = 0; i < m; ++i){
            if(x[i] == 0) ans1 += w[i];
            else ans2 += w[i];
        }
        if(n == 2)
            return max(ans1, ans2);
        else{
            ll best = 0, sum = 0;
            int p = 0;
            for(int i = 0; i <= n + 1; ++i) a[i][0] = a[i][1] = suf[i] = 0;
            for(int i = 0; i < m; i++) if(x[i] == 0) a[y[i]][0] = w[i]; else a[y[i]][1] = w[i];

            for(int i = n; i >= 0; --i) suf[i] = suf[i + 1] + a[i][1];

            for(int i = 0; i <= n + 1; ++i){
                best = max(best, suf[i] + sum);
                sum += a[i][0];
            }

            return best;
        }
    }
    if(case3){
        for(int i = 0; i <= n; ++i){
            dp[i][0] = dp[i][1] = 0;
        }
        vector<ll> v(S); 
        for(int i = 0; i < m; ++i) v[x[i]] = w[i];
        for(int i = 1; i <= n; ++i){
            dp[i][0] = max(dp[i - 1][0], dp[i - 1][1] + v[i]);
            if(i>=2){
                dp[i][1] = max(dp[i - 1][1], dp[i - 1][0] + v[i - 1]);
            }
            else{
                dp[i][1] = max(dp[i - 1][0], dp[i - 1][1]);
            }
        }
        return max(dp[n][0], dp[n][1]);
    }
    return -1;
}

Compilation message

fish.cpp: In function 'long long int max_weights(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
fish.cpp:32:17: warning: unused variable 'p' [-Wunused-variable]
   32 |             int p = 0;
      |                 ^

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 2132 KB Output is correct
2 Correct 26 ms 2660 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 85 ms 7280 KB Output is correct
6 Correct 91 ms 7280 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 45 ms 6188 KB Output is correct
3 Correct 74 ms 7356 KB Output is correct
4 Correct 21 ms 2160 KB Output is correct
5 Correct 27 ms 2632 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 23 ms 4340 KB Output is correct
13 Correct 28 ms 4992 KB Output is correct
14 Correct 24 ms 4212 KB Output is correct
15 Correct 29 ms 4708 KB Output is correct
16 Correct 24 ms 4308 KB Output is correct
17 Correct 27 ms 4696 KB Output is correct

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Incorrect 2 ms 2644 KB 1st lines differ - on the 1st token, expected: '882019', found: '1764038'
3 Halted 0 ms 0 KB -

Subtask #4
0 / 14.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB 1st lines differ - on the 1st token, expected: '3', found: '-1'
2 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB 1st lines differ - on the 1st token, expected: '3', found: '-1'
2 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB 1st lines differ - on the 1st token, expected: '3', found: '-1'
2 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Incorrect 2 ms 2644 KB 1st lines differ - on the 1st token, expected: '882019', found: '1764038'
3 Halted 0 ms 0 KB -

Subtask #8
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 2132 KB Output is correct
2 Correct 26 ms 2660 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 85 ms 7280 KB Output is correct
6 Correct 91 ms 7280 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 45 ms 6188 KB Output is correct
9 Correct 74 ms 7356 KB Output is correct
10 Correct 21 ms 2160 KB Output is correct
11 Correct 27 ms 2632 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 23 ms 4340 KB Output is correct
19 Correct 28 ms 4992 KB Output is correct
20 Correct 24 ms 4212 KB Output is correct
21 Correct 29 ms 4708 KB Output is correct
22 Correct 24 ms 4308 KB Output is correct
23 Correct 27 ms 4696 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Incorrect 2 ms 2644 KB 1st lines differ - on the 1st token, expected: '882019', found: '1764038'
26 Halted 0 ms 0 KB -