Submission #1003281

#TimeUsernameProblemLanguageResultExecution timeMemory
1003281vjudge1Rice Hub (IOI11_ricehub)C++17
Compilation error
0 ms0 KiB
#include <bits/stdc++.h> using namespace std; #define ll long long #define f first #define s second #define pf push_front #define pb push_back #define pi pair<int,int> #define vi vector<int> /* int besthub(int n, int last, int x[], ll b){ int ans = 0; int l , r; for(int i = 0; i < n; i++){ l = i - (lower_bound(x.begin(), x.end(), max(0LL,x[i]-b))- x.begin()); r = upper_bound(x.begin(), x.end(), min((ll) last, x[i]+b)) - x.begin() - (i+1); // cout << x[i] << " " <<l << " " << r << endl; ans = max(l+r+1,ans); } return ans; } */ int besthub(int n, int last, int x[], ll b){ ll ans = 0; ll cnt; ll pref[n+1]; pref[0] = 0; for(int i = 1; i <= n; i++){ pref[i] = pref[i-1]+x[i-1]; } if(b>=pref[n]){ return n; } int l = 1; int final = 1; for(int r =1; r <= n;r++){ ll m = (l+r)/2; if(final==n) return n; // ll val = pref[r] - pref[m] + (pref[m]-pref[max(0,l)]); ll val= ((x[m-1]*(m-l)) - (pref[m-1]-pref[l-1]) + ((pref[r]-pref[m]) - (x[m-1]*(r-m)))); //cout <<l << " "<< r << " " << val<<endl; // cout << val << endl; if( ((x[m-1]*(m-l)) - (pref[m-1]-pref[l-1]) + ((pref[r]-pref[m]) - (x[m-1]*(r-m))))<= b){ // cout << l << " " << r << endl; final = max(final,r-l+1); } else{ while(((x[m-1]*(m-l)) - (pref[m-1]-pref[l-1]) + ((pref[r]-pref[m]) - (x[m-1]*(r-m)))) > b && l<r){ m = (l+r)/2; l++; } m = (l+r)/2; if(((x[m-1]*(m-l)) - (pref[m-1]-pref[l-1]) + ((pref[r]-pref[m]) - (x[m-1]*(r-m))))<= b){ final = max(final,r-l+1); } } } return final; } int main(){ ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); int r,b,l; cin >> r >> l>> b; int v[r]; for(int i = 0; i < r; i++){ cin >> v[i]; } cout << besthub(r,l,v,b)<<endl; }

Compilation message (stderr)

ricehub.cpp: In function 'int besthub(int, int, int*, long long int)':
ricehub.cpp:59:11: warning: unused variable 'val' [-Wunused-variable]
   59 |        ll val= ((x[m-1]*(m-l)) - (pref[m-1]-pref[l-1]) + ((pref[r]-pref[m]) - (x[m-1]*(r-m))));
      |           ^~~
ricehub.cpp:34:8: warning: unused variable 'ans' [-Wunused-variable]
   34 |     ll ans = 0;
      |        ^~~
ricehub.cpp:36:8: warning: unused variable 'cnt' [-Wunused-variable]
   36 |     ll cnt;
      |        ^~~
/usr/bin/ld: /tmp/ccuAMhOF.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccRoYG3B.o:ricehub.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status