#include <bits/stdc++.h>
#define endl '\n'
#define mp make_pair
#define pb push_back
#define f first
#define s second
#define fo(i,n) for(auto i =0 ; i < n;i++)
#define fore(i,l,r) for(auto i = l; i < r;i++)
#define forex(i,r,l) for(auto i = r; i >= l; i--)
#define ffo(i,n) forex(i,n-1,0)
#define all(x) x.begin(),x.end()
#define lsb(x) x&(-x)
#define sz(x) (int)x.size()
#define gcd(a,b) __gcd(a,b)
#define vii vector<ii>
using namespace std;
using ll = long long; using ull = unsigned long long;
using vi = vector<ll>;using ii = pair<ll,ll>;using mii = map<ll,ll>;
#pragma GCC target ("avx2")
#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")
int max_score(int n, int x, int y, ll k, int u[], int v[], int w[]){
ll suf[n+1]{}, pre[n+1]{};
fore(i,1,n)pre[i] = (i ? w[i-1] : 0) + (i ? pre[i-1] : 0);
ffo(i,n-1)suf[i] = w[i] + suf[i+1];
ll c[n+1]{};
ll ans = 0, tot= 0;
for(ll i=x;i>=0;i--){
ans+=suf[i] - suf[x];
for(ll j=x;j <=n-1;j++){
ans+=pre[j]-pre[x];
for(ll l=y;l>=0;l--){
if(l>j)ans+=suf[l]- suf[y];
else{
if(l>x){ans+=max(suf[l]-suf[y], pre[l] - pre[x]);ans-=min(suf[l]-suf[y], pre[l] - pre[x]);}
else ans+=suf[l]-suf[y];
}
for(ll lk=y;lk<=n-1;lk++){
if(j<lk)ans+=pre[lk]-pre[y];
// cout << i << " " << j << " " << l << " " << lk << " " << ans << endl;
if(ans<=k)tot = max(tot,j-i+1 + lk-l+1);
}
for(ll lk=y;lk<=n-1;lk++)
if(j<lk)ans-=pre[lk] - pre[y];
}
for(ll l =y;l>=0;l--){
if(l>j)ans-=suf[l]- suf[y];
else{
if(l>x){ans-=max(suf[l]-suf[y], pre[l] - pre[x]);ans+=min(suf[l]-suf[y], pre[l] - pre[x]);}
else ans-=suf[l]-suf[y];
}
}
// cout<<ans<<endl;
}
for(ll j =x;j<=n-1;j++)
ans-=pre[j]-pre[x];
}
return tot;
}
void test_case(){
int n; cin >> n;
int X,Y;cin >> X >> Y;
ll K; cin >> K;
int u[n], v[n], w[n];
fo(i,n){
cin >> u[i] >> v[i] >> w[i];
}
cout << max_score(n,X,Y, K, u,v,w) << endl;
}
int main(){cin.tie(0)->sync_with_stdio(0);
srand(time(nullptr));
int t =1;
// cin >> t;
while(t--)test_case();
}
Compilation message
closing.cpp:20: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
20 | #pragma GCC optimization ("O3")
|
closing.cpp:21: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
21 | #pragma GCC optimization ("unroll-loops")
|
closing.cpp: In function 'int max_score(int, int, int, ll, int*, int*, int*)':
closing.cpp:26:8: warning: unused variable 'c' [-Wunused-variable]
26 | ll c[n+1]{};
| ^
/usr/bin/ld: /tmp/ccE8xQO7.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccYeNUa8.o:closing.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccE8xQO7.o: in function `main':
grader.cpp:(.text.startup+0x6a1): undefined reference to `max_score(int, int, int, long long, std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status
