Submission #534177

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
534177	2022-03-08T01:51:28 Z	Paul_Liao_1457	Self Study (JOI22_ho_t2)	C++17	10 / 100	342 ms	4968 KB

Main

// 還要更強
#include<iostream>
#include<queue>
#include<set>
#include<map>
#include<iomanip>
#include<math.h>
#include<cstring>
#include<stack>
#include<string.h>
#include<random>
#include<algorithm>
#include<vector>
#include <cassert>

#define ll long long
#define FOR(i,a,b) for(ll i=a;i<b;i++)
#define REP(i,a,b) for(int i=a;i>=b;i--)
#define INF (ll)(2e18)
#define pb push_back
#define F first
#define S second

using namespace std;

ll n,m;
ll A[300005],B[300005];

bool check(ll x){
    ll res=0;
    FOR(i,0,n){
        ll tmp=x;
        if(1ll*A[i]*m<tmp){
            tmp-=A[i]*m;
            if(B[i]<=0) exit(-1);
            res-=tmp/B[i]+(tmp%B[i]?1:0);
        }
        else{
            ll used=1;
            res+=0;
        }
    }
    if(res>=0) return 1;
    return 0;
}

signed main(){
    cin>>n>>m;
    FOR(i,0,n){
        cin>>A[i];
    }
    FOR(i,0,n){
        cin>>B[i]; A[i]=max(A[i],B[i]);
    }
    ll l=1,r=(1e18+1),ans=1;
    while(l<r){
        ll mid=(l+r)>>1;
        if(check(mid)){
            ans=max(ans,mid); l=mid+1;
        }
        else{
            r=mid;
        }
    }
    cout<<ans<<endl;
}

Compilation message

Main.cpp: In function 'bool check(long long int)':
Main.cpp:39:16: warning: unused variable 'used' [-Wunused-variable]
   39 |             ll used=1;
      |                ^~~~

Subtask #1

10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	0 ms	204 KB	Output is correct
4	Correct	0 ms	204 KB	Output is correct
5	Correct	1 ms	256 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	1 ms	204 KB	Output is correct
9	Correct	1 ms	204 KB	Output is correct
10	Correct	5 ms	332 KB	Output is correct
11	Correct	308 ms	4956 KB	Output is correct
12	Correct	316 ms	4920 KB	Output is correct
13	Correct	244 ms	4852 KB	Output is correct
14	Correct	323 ms	4964 KB	Output is correct
15	Correct	0 ms	204 KB	Output is correct
16	Correct	246 ms	4892 KB	Output is correct
17	Correct	342 ms	4968 KB	Output is correct
18	Correct	299 ms	4916 KB	Output is correct

Subtask #2

0 / 25.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	204 KB	Output is correct
2	Correct	246 ms	4892 KB	Output is correct
3	Correct	342 ms	4968 KB	Output is correct
4	Correct	299 ms	4916 KB	Output is correct
5	Incorrect	0 ms	204 KB	Output isn't correct
6	Halted	0 ms	0 KB	-

Subtask #3

0 / 27.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	0 ms	204 KB	Output is correct
4	Correct	0 ms	204 KB	Output is correct
5	Correct	1 ms	256 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	1 ms	204 KB	Output is correct
9	Correct	1 ms	204 KB	Output is correct
10	Correct	5 ms	332 KB	Output is correct
11	Correct	308 ms	4956 KB	Output is correct
12	Correct	316 ms	4920 KB	Output is correct
13	Correct	244 ms	4852 KB	Output is correct
14	Correct	323 ms	4964 KB	Output is correct
15	Incorrect	0 ms	204 KB	Output isn't correct
16	Halted	0 ms	0 KB	-

Subtask #4

0 / 29.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	0 ms	204 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #5

0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	0 ms	204 KB	Output is correct
4	Correct	0 ms	204 KB	Output is correct
5	Correct	1 ms	256 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	1 ms	204 KB	Output is correct
9	Correct	1 ms	204 KB	Output is correct
10	Correct	5 ms	332 KB	Output is correct
11	Correct	308 ms	4956 KB	Output is correct
12	Correct	316 ms	4920 KB	Output is correct
13	Correct	244 ms	4852 KB	Output is correct
14	Correct	323 ms	4964 KB	Output is correct
15	Incorrect	0 ms	204 KB	Output isn't correct
16	Halted	0 ms	0 KB	-