#pragma GCC optimize("Ofast")
#include "bits/stdc++.h"
// #include <ext/pb_ds/assoc_container.hpp>
// #include <ext/pb_ds/tree_policy.hpp>
// using namespace __gnu_pbds;
typedef long long ll;
using namespace std;
#define sim template < class c
#define ris return * this
#define dor > debug & operator <<
#define eni(x) sim > typename \
enable_if<sizeof dud<c>(0) x 1, debug&>::type operator<<(c i) {
sim > struct rge { c b, e; };
sim > rge<c> range(c i, c j) { return rge<c>{i, j}; }
sim > auto dud(c* x) -> decltype(cerr << *x, 0);
sim > char dud(...);
struct debug {
// #ifdef LOCAL
~debug() { cerr << endl; }
eni(!=) cerr << boolalpha << i; ris; }
eni(==) ris << range(begin(i), end(i)); }
sim, class b dor(pair < b, c > d) {
ris << "(" << d.first << ", " << d.second << ")";
}
sim dor(rge<c> d) {
*this << "[";
for (auto it = d.b; it != d.e; ++it)
*this << ", " + 2 * (it == d.b) << *it;
ris << "]";
}
// sim dor(const c&) { ris; }
};
#ifdef ASJKD
}
#endif
#define imie(...) " [" << #__VA_ARGS__ ": " << (__VA_ARGS__) << "] "
#define read(x) for(auto &i : (x)){cin>>i;}
#define all(x) begin(x), end(x)
#define pb push_back
#define pll pair<ll,ll>
#define pii pair<int,int>
// #define ordered_set tree<int, null_type,less<int>, rb_tree_tag,tree_order_statistics_node_update>
int mod = 1e9+7;
int INF = 1e9+1e8;
ll INF64 = 1e18;
ll binpow(ll a, ll b, ll mod){
ll res = 1;
while(b > 0){
if(b % 2){
res = res * a % mod;
}
a = a * a % mod;
b >>= 1;
}
return res;
}
void mxself(int &a, int b){
a = max(a, b);
}
void rpii(pii &a){
cin>>a.first>>a.second;
}
void mnself(int &a,int b){
a = min(a, b);
}
void mult(ll &a, ll b){
a = a * b % mod;
}
void add(ll &a, ll b){
a = (a + b);
while(a >= mod) a -= mod;
}
void setIO(string s){
freopen((s + ".in").c_str(), "r", stdin);
freopen((s + ".out").c_str(), "w", stdout);
}
void test_case(int test){
int s, n;
cin>>s>>n;
vector<int> v(n);
vector<int> w(n);
vector<int> q(n);
for(int i=0;i<n;i++){
cin>>v[i]>>w[i]>>q[i];
}
vector<ll> dp(s+1);
for(int rep=0;rep<n;rep++){
vector<int> mx(s+1);
for(int i=0;i<=s;i++){
if(i < w[rep]){
mx[i] = i;
} else{
int last = mx[i-w[rep]];
int h = min(q[rep], i - last);
if(h * v[rep] + dp[last] < dp[i]){
mx[i] = i;
} else{
mx[i] = mx[i-w[rep]];
dp[i] = dp[last] + h * v[rep];
}
}
}
for(int i=1;i<=s;i++){
dp[i] = max(dp[i], dp[i-1]);
}
}
ll ans = 0;
for(int i=s;i>=0;i--){
ans = max(ans, dp[i]);
}
cout<<ans<<'\n';
}
int main(){
cin.tie(0);
cout.tie(0);
ios_base::sync_with_stdio(false);
int t=1;
// setIO("feast");
// cin>>t;
for(int test=1;test<=t;test++){
test_case(test);
}
return 0;
}
Compilation message
knapsack.cpp: In function 'void setIO(std::string)':
knapsack.cpp:78:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
78 | freopen((s + ".in").c_str(), "r", stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
knapsack.cpp:79:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
79 | freopen((s + ".out").c_str(), "w", stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
0 ms |
312 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
308 KB |
Output is correct |
| 2 |
Incorrect |
1 ms |
332 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
308 KB |
Output is correct |
| 2 |
Incorrect |
1 ms |
332 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
0 ms |
312 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
0 ms |
312 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
