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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#421684 | #8723. 乘二 | liusy | WA | 395ms | 18064kb | C++11 | 3.2kb | 2024-05-26 00:47:22 | 2024-05-26 00:47:22 |
Judging History
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;
}
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
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3668kb
input:
3 3 7 2 1
output:
15
result:
ok 1 number(s): "15"
Test #2:
score: -100
Wrong Answer
time: 395ms
memory: 18064kb
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'