oj.uz

Submission #916034

# Submission time Handle Problem Language Result Execution time Memory
916034 2024-01-25T07:21:52 Z yeediot Self Study (JOI22_ho_t2) C++14
0 / 100
 1 ms 348 KB 
#include<bits/stdc++.h>
using namespace std;
#define int long long
#define pb push_back
#define pii pair<int,int>
#define F first
#define S second
#define all(X) X.begin(),X.end()
#define chmax(a,b) a=max(a,b)
#define chmin(a,b) a=min(a,b)
#ifdef local
void setio(){freopen("/Users/iantsai/Library/Mobile Documents/com~apple~CloudDocs/cpp/Empty.md","r",stdin);}
#define debug(x...) cerr << "[" << #x << "] = ["; _print(x)
#else
void setio(){}
#define debug(x...)
#endif
signed main(){
    ios::sync_with_stdio(0);
    cin.tie(0);cout.tie(0);
    setio();
    int n,m;
    cin>>n>>m;
    vector<pair<__int128,__int128>>v;
    for(int i=0;i<n;i++){
        int a;
        cin>>a;
        v.pb({a,0});
    }
    for(int i=0;i<n;i++){
        int a;
        cin>>a;
        v[i].S=a;
    }
    int l=0,r=2e18+10;
    while(l<r){
        int mm=l+r+1>>1;
        __int128 left=n*m;
        bool ok=1;
        for(int i=0;i<n;i++){
            if(v[i].F>=v[i].S){
                if(v[i].F*m>mm){
                    __int128 x=(mm-1)/v[i].F+1;
                    left-=x;
                }
                else{
                    __int128 cur=mm;
                    left-=m;
                    cur-=m*v[i].F;
                    __int128 x=(cur-1)/v[i].S+1;
                    left-=x;
                }
            }
            else{
                __int128 x=(mm-1)/v[i].S+1;
                left-=x;
            }
        }
        if(left>=0){
            l=mm;
        }
        else{
            r=mm-1;
        }
    }
    cout<<(int)l<<'\n';
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:37:19: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   37 |         int mm=l+r+1>>1;
      |                ~~~^~
Main.cpp:39:14: warning: unused variable 'ok' [-Wunused-variable]
   39 |         bool ok=1;
      |              ^~

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Incorrect 0 ms 348 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Incorrect 1 ms 348 KB Output isn't correct
8 Halted 0 ms 0 KB -

Subtask #3
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Incorrect 0 ms 348 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Incorrect 1 ms 348 KB Output isn't correct
8 Halted 0 ms 0 KB -

Subtask #5
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Incorrect 0 ms 348 KB Output isn't correct
3 Halted 0 ms 0 KB -