oj.uz

Submission #1033446

# Submission time Handle Problem Language Result Execution time Memory
1033446 2024-07-24T20:37:44 Z cryptobunny Knapsack (NOI18_knapsack) C++14
0 / 100
 1 ms 348 KB 
#include <iostream>
#include <vector>
#include <math.h>
#include <cassert>
using namespace std;

int dp[2001];

int main() {
    int s, n;
    cin >> s >> n;
    vector<int> val, cost;

    for (int i = 0; i < n; i++) {
        int v, w, k;
        cin >> v >> w >> k;
        int j = log(k) / log(2);
        for (int x = 0; x < j; x++) {
            val.push_back(v << x);
            cost.push_back(w << x);
            k -= 1 << x;
        }
        if (k) {
            val.push_back(v * k);
            cost.push_back(w * k);
        }
    }
    // vector<int> dp(s + 1);
    int ans = 0;
    for (int i = 0; i < val.size(); i++) {
        assert(i < cost.size());
        // cout << val[i] << " " << cost[i] << endl;
        for (int w = s; w >= cost[i]; w--) {
            // dp[w] = max(dp[w], dp[w - cost[i]] + val[i]);
            // ans = max(ans, dp[w]);
        }
    }
    cout << ans << endl;
}

Compilation message

knapsack.cpp: In function 'int main()':
knapsack.cpp:30:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |     for (int i = 0; i < val.size(); i++) {
      |                     ~~^~~~~~~~~~~~
In file included from /usr/include/c++/10/cassert:44,
                 from knapsack.cpp:4:
knapsack.cpp:31:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |         assert(i < cost.size());
      |                ~~^~~~~~~~~~~~~

Subtask #1
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 17.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 24.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 27.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -