# | Submission time | Handle | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
979927 | 2024-05-11T16:16:26 Z | vjudge1 | Closing Time (IOI23_closing) | C++17 | 0 ms | 0 KB |
#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; }