QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#421704#8723. 乘二liusyWA 415ms17848kbC++143.2kb2024-05-26 00:50:032024-05-26 00:50:23

Judging History

你现在查看的是最新测评结果

  • [2024-05-26 00:50:23]
  • 评测
  • 测评结果:WA
  • 用时:415ms
  • 内存:17848kb
  • [2024-05-26 00:50:03]
  • 提交

answer

#include<iostream>
#include<cstdio>
#include<algorithm>
#include<cstring>
#include<queue>

using namespace std;
typedef long long ll;
const int N=200010;
const ll mod = 1000000007;

struct node{
    ll a, n, mi, i;

}arr[N];

bool cmp(node a, node b){
    return a.a < b.a;
}

struct cmpmi
{
    //重载 () 运算符
    bool operator()(node a, node b)
    {
        int ai = -1, bi = -1;
        int da = a.a, db = b.a;
        while(da){
            ai ++;
            da >>= 1;
        }
        while(db){
            bi ++;
            db >>= 1;
        }
        if(ai+a.n == bi+b.n){
            return a.a > b.a;
        }
        return ai+a.n > bi+b.n;

        // if(ai == bi){
        //     if(a.n == b.n)return a.a > b.a;
        //     return a.n > b.n;
        // }
        // else if(ai > bi){
        //     return a.n > b.n - (ai - bi);
        // }
        // else{
        //     return a.n - (bi - ai) > b.n;
        // }
    }
};

int main(){
    int n, k;
    cin >> n >> k;

    priority_queue<node, vector<node>, cmpmi> que;
    for(int i = 1; i <= n; i ++){
        scanf("%lld", &arr[i].a);
    }

    // 真值排序
    sort(arr + 1, arr + n + 1, cmp);

    // 计算最大值的二进制位数
    int maxx = arr[n].a, maxi = -1;
    while(maxx){
        maxi ++;
        maxx >>= 1;
    }
    // 底数真值,指数,方向指数,下标
    que.push({arr[n].a, 0, 0, n});

    for(int i = 1; i < n; i ++){
        ll maxx = arr[n].a;
        ll tmp = arr[i].a;
        int cnt = 0;

        while((1 << maxi) > tmp){
            cnt ++;
            tmp <<= 1;
            //cout << "?";
        }
        arr[i].mi = cnt;
        // que.push({arr[i].a, arr[i].n, arr[i].mi, i});
        que.push({arr[i].a, 0, arr[i].mi, i});

    }
    // cout << "->";
    // for(int i = 1; i <= n; i ++){
    //     auto toop = que.top();
    //     que.pop();
    //     cout << toop.a << " ";
    // }
    // cout << endl;

    // return 0;
    
    int f = 0;
    while(k){
        auto toop = que.top();
        //cout << toop.a << " ";
        if(toop.mi == 0){
            f = 1;
            break;
        }
        
        que.pop();
        k --;
        toop.mi -= 1;
        toop.n += 1;
        arr[toop.i].n += 1;
        //cout << toop.a <<" " <<  toop.n << " "<< endl;
        que.push(toop);
        
    }
    //k = k + 1;
    //cout << k << endl;
    if(k){
        int tk = k / n;
        k = k % n;
        for(int i = 1; i <= n; i ++){
            arr[i].n += tk;
            if(i <= k)arr[i].n += 1;
        }
    }

    ll ans = 0;
    for(int i = 1; i <= n; i ++){
        ll ai = arr[i].a % mod, cnt = arr[i].n;

        ll tmp = 1, t = 2;
        while(cnt){
            if(cnt & 1){
                tmp = (tmp * t) % mod;
            }
            t = t * t % mod;
            cnt >>= 1;
        }

        tmp = (tmp * ai) % mod;
        //cout << tmp << ' ';
        // ans = (ans + tmp) % mod;
        ans = ans + tmp % mod;

    }
    cout << ans % mod;
    return 0;
}

/*
3 10 7 2 1
28 32 16


3 100 1 1 1


10 3 
1 2 3 4 5 6 7 8 9 10



4 4 3 4 5 6 7 8 9 10 = 60
*/

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 1ms
memory: 3696kb

input:

3 3
7 2 1

output:

15

result:

ok 1 number(s): "15"

Test #2:

score: -100
Wrong Answer
time: 415ms
memory: 17848kb

input:

200000 1605067
366760624 67854 93901 693975 27016 1046 10808 6533158 54778 500941023 77236442 32173 10431454 2 9726 1553148 89282 411182309 494073 131299543 249904771 7906930 353 9909 3632698 29156 1917186 303 737 1189004 22 1983 263 711 4106258 2070 36704 12524642 5192 123 2061 22887 66 380 1 10153...

output:

609616159

result:

wrong answer 1st numbers differ - expected: '707034173', found: '609616159'