Submission #969473

#	Time	Username	Problem	Language	Result	Execution time	Memory
969473		modwwe	Self Study (JOI22_ho_t2)	C++17	0 / 100	84 ms	6208 KiB

Main

//#pragma GCC optimize("Ofast,unroll-loops")
//#pragma GCC target("avx,avx2,sse,sse2")
#include<bits/stdc++.h>
#define int long long
//#define ll long long
#define down cout<<'\n';
#define NHP     ios_base::sync_with_stdio(0);cout.tie(0);cin.tie(0);
#define modwwe  int t;cin>>t; while(t--)
#define bit(i,j) (i>>j&1)
#define sobit(a) __builtin_popcountll(a)
#define task "test"
#define fin(x) freopen(x".inp","r",stdin)
#define fou(x) freopen(x".out","w",stdout)
#define pb push_back
#define checktime   cerr << (double)clock() / CLOCKS_PER_SEC * 1000  << " ms";
using namespace std;
void ngha();
const int mod2 = 1e9 + 7;
const int  mod1 = 998244353;
struct ib
{
    int a;
    int b;
};
struct icd
{
    int a, b;
};
struct ic
{
    int a, b, c;
};
struct id
{
    int a, b, c, d;
};
struct ie
{
    int a, b, c, d, e;

};
int n, m, s1, s2, s4, s3, sf, k, r, mid, s5, s6, mx, s7, s8, s9, mx2, res, dem2 = 0, dem = 0, l;
int  i, s10, s12;
int el = 29;
main()
{
//#ifndef ONLINE_JUDGE
    //   fin(task),fou(task);
//#endif
    NHP
//modwwe
    //  cin>>res;
    ngha(), down
    checktime
}
int a[300001];
int b[300001];
 bool check(int x)
 { int sss=0;
      for(int i=1;i<=n;i++)
      {
           int ss2=x/a[i];
            if(x%a[i]!=0)ss2++;
             if(ss2<=m) sss+=m-ss2;
             else
             {
                int ss3=x-a[i]*m;

                int ss4=ss3/b[i];
                if(ss3%b[i]!=0)ss4++;
                sss-=ss4;
             }
      }
      return sss>=0;
 }
void ngha()
{
    cin >> n >> m;
    for(int i=1;i<=n;i++)
         cin>>a[i];
         s2=0;
     for(int i=1;i<=n;i++)
         cin>>b[i],
         a[i]=max(a[i],b[i]),s2=max(s2,a[i]);
     l=n;
     r=s2*m;
     while(l<=r)
     {
         int mid=l+r>>1;
          if(check(mid)) l=mid+1;
          else r=mid-1;
     }
     cout<<l-1;

}

Compilation message (stderr)

Main.cpp:45:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   45 | main()
      | ^~~~
Main.cpp: In function 'void ngha()':
Main.cpp:79:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   79 |     for(int i=1;i<=n;i++)
      |     ^~~
Main.cpp:81:10: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   81 |          s2=0;
      |          ^~
Main.cpp:89:19: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   89 |          int mid=l+r>>1;
      |                  ~^~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 25
• Subtask 3: 0 / 27
• Subtask 4: 0 / 29
• Subtask 5: 0 / 9