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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#239674#6558. Allergen TestingFyindWA 63ms3380kbC++20915b2023-11-04 22:23:142023-11-04 22:23:15

Judging History

你现在查看的是最新测评结果

  • [2023-11-04 22:23:15]
  • 评测
  • 测评结果:WA
  • 用时:63ms
  • 内存:3380kb
  • [2023-11-04 22:23:14]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;
#define _ <<" "<<
#define sz(x) ((int) (x).size())
typedef pair<int, int> pii;
typedef long long ll;
#define debug(x) cout<<#x<<':'<<x<<endl;
typedef unsigned long long ull;
const int maxn=1000;
ll ksm(ll a,ll n){
    ll ans=1;
    while(n){
        if(n&1) ans=a*ans;
        a=a*a;
        n>>=1;
    }
    return ans;
}

int main(){
    int T;
    cin>>T;
    while(T--){
        ll n,d;
        cin>>n>>d;
        //debug(n);debug(d);
        //vector<ll> a(n+1);
        //a[0]=1;
        if(n==1){
            cout<<0<<endl;
            continue;
        }
        if(d>=n-1){
            cout<<1<<endl;
        }
        ll l=1,r=n;
        while(l<r){
            ll mid=(l+r)/2;
            if(ksm(d+1,mid)>=n){
                r=mid;
            }
            else l=mid+1;
        }
        cout<<l<<endl;
    }
}

詳細信息

Test #1:

score: 100
Accepted
time: 1ms
memory: 3376kb

input:

1
4 1

output:

2

result:

ok single line: '2'

Test #2:

score: -100
Wrong Answer
time: 63ms
memory: 3380kb

input:

10000
1 1
1000000000000000000 1
1 1000000000000000000
1000000000000000000 1000000000000000000
26615519354743225 163142634
26615519354743225 163142634
26615519354743224 163142634
26615519354743226 163142634
847997831064072529 920867976
847997831064072529 920867976
847997831064072528 920867976
8479978...

output:

0
1000000000000000000
0
1
475058372354797464
6632947694746920
6632947694746920
21919841632936254
6632947694746920
389412607661037943
389412607661037943
639973114908005638
389412607661037943
115771522664687152
115771522664687152
45095596936117038
103877768030643865
82043553972576194
82043553972576194...

result:

wrong answer 2nd lines differ - expected: '60', found: '1000000000000000000'