#include <bits/stdc++.h>
using namespace std;
void setIO(string fileName = ""){
if(fileName.length()){
freopen((fileName+".in").c_str(), "r", stdin);
freopen((fileName+".out").c_str(), "w", stdout);
}
}
#define ll long long
#define ld long double
#define FOR(i,a,b) for(__typeof(b) i=a; i<=b; i++)
#define FOD(i,a,b) for(__typeof(b) i=b; i>=a; i--)
#define EACH(u, v) for(auto& u : v)
#define sz(x) ((int)(x).size())
#define all(x) (x).begin(), (x).end()
#define pb push_back
#define ii pair<int,int>
#define iii pair<int,ii>
#define ld2 pair<ld, ld>
#define ll2 pair<ll, ll>
#define X first
#define Y second
#define ed "\n"
#define sp " "
#define vt vector
const int oo1 = 1e9 + 7;
const int oo2 = 1e9 + 9;
const int N = 1e5 + 1;
const int M = 5e6 + 1;
int s, n;
void solve()
{
map<int, vector<pair<int, int>>> cnt;
cin >> s >> n;
FOR(i, 1, n) {
int v, w, k;
cin >> v >> w >> k;
if(w <= s && k)
cnt[w].pb({v, k});
}
vector<vector<ll>> best(sz(cnt) + 1, vector<ll>(s + 1, oo1));
best[0][0] = 0;
int a = 1;
for(auto& [w, item] : cnt) {
sort(item.begin(), item.end(), greater<pair<int, int>>());
FOR(i, 0, s) {
best[a][i] = best[a-1][i];
int c = 0, type = 0, curused = 0;
ll res = 0;
while((c + 1) * w <= i && type < sz(item)) {
c++;
res += item[type].X;
if(best[a-1][i-c*w] != oo1) {
best[a][i] = max(best[a][i], best[a-1][i-c*w] + res);
}
curused++;
if(curused == item[type].Y) {
curused = 0;
type++;
}
}
}
a++;
}
cout << *max_element(all(best.back()));
}
int main()
{
ios_base::sync_with_stdio(false), cin.tie(0), cout.tie(0);
setIO("");
int t;
t = 1;
//cin >> t;
FOR(i, 1, t) {
solve();
}
return 0;
}
Compilation message
knapsack.cpp: In function 'void setIO(std::string)':
knapsack.cpp:7:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
7 | freopen((fileName+".in").c_str(), "r", stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
knapsack.cpp:8:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
8 | freopen((fileName+".out").c_str(), "w", stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
1 ms |
332 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
0 ms |
204 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
0 ms |
204 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
1 ms |
332 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
1 ms |
332 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |