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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#788018 | #9622. 有限小数 | O_start | WA | 114ms | 3704kb | C++20 | 2.5kb | 2024-11-27 15:36:34 | 2024-11-27 15:36:38 |
Judging History
answer
#pragma oucGCC optimize(2)
#include<iostream>
#include<queue>
#include<cmath>
#include<vector>
#include<queue>
#include<cstring>
#include<algorithm>
#include<set>
#include<unordered_set>
#include<stack>
#include<map>
#include<unordered_map>
using namespace std;
long long k, p, q, m, n;
const int maxn = 200005;
const long long inf = 0xfffffffffffffff;
const long long mod = 998244353;
int t;
string s;
vector<long long>rec;
struct Node {
long long val;
long long deg;
};
bool cmp(Node a, Node b) {
return a.val < b.val;
}
long long fact[maxn], infact[maxn];
long long qpow(long long a, long long b) {
if (b < 0) return 0;
long long ans = 1;
while (b) {
if (b & 1) ans = (ans * a);
b >>= 1;
a = (a * a);
}
return ans;
}
void init() {
fact[0] = 1, infact[0] = 1;
for (int i = 1; i < maxn; i++) {
fact[i] = i * fact[i - 1] % mod;
infact[i] = infact[i - 1] % mod * qpow(i, mod - 2) % mod;
}
}
long long inv(long long n) {
return qpow(n, mod - 2);
}
long long frac_mod(long long a, long long b) {
return (a * inv(b) % mod) % mod;
}
long long nCr(long long n, long long r) {
if (r > n || r < 0)
return 0;
if (n == r)
return 1;
if (r == 0)
return 1;
return (fact[n] * infact[r]) % mod * infact[n - r] % mod;
}
long long gcd(long long da, long long xiao) {
while (xiao != 0) {
long long temp = xiao;
xiao = da % xiao;
da = temp;
}
return(da);
}
long long lcm(long long da, long long xiao) {
return da*xiao/gcd(da,xiao);
}
long long Ceil(long long n,long long k){//重写向上取整
long long ans=n/k;
if(n%k!=0)ans++;
return ans;
}
int main(){
for(int i=0;i<=42;i++){
for(int j=0;j<=18;j++){
long long tmp=qpow(2,i)*qpow(5,j);
if(tmp<=1e12){
rec.push_back(tmp);
}
else{
break;
}
}
}
cin>>t;
while(t--){
cin>>n>>m;
pair<long long,long long>ans={inf,inf};
for(auto k:rec){
long long tmp=lcm(k,m);
long long tmp2=tmp/m*n;//a
long long tmp3=tmp/k;//约多少
long long tmp4=Ceil(tmp2,tmp3);
//cout<<tmp<<" "<<tmp2<<" "<<tmp3<<" "<<tmp4<<" "<<tmp4*tmp3-tmp2<<'\n';
if(tmp4*tmp3-tmp2<ans.first&&tmp<=1e9){
ans.first=tmp4*tmp3-tmp2;
ans.second=tmp;
}
}
cout<<ans.first<<" "<<ans.second<<'\n';
}
return 0;
}
/*
4
1 2
2 3
3 7
19 79
*/
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3704kb
input:
4 1 2 2 3 3 7 19 79
output:
0 2 1 3 1 4375 3 316
result:
ok 4 case(s)
Test #2:
score: -100
Wrong Answer
time: 114ms
memory: 3672kb
input:
10000 11 12 28 53 17 60 2 35 17 181 80 123 68 141 79 163 71 99 13 64 33 61 15 32 16 61 11 86 33 74 128 143 40 53 7 23 30 31 5 6 86 181 73 91 13 23 71 81 1 2 7 38 117 160 33 83 129 151 88 153 25 58 16 19 19 141 95 124 43 96 71 139 11 59 106 109 93 152 34 43 17 99 1 57 20 159 16 25 5 73 159 170 172 17...
output:
1 12 1 828125000 1 60 1 109375 1 231680000 23 960937500 1 36096000 5 326 1 63360 0 64 1 61000 0 32 1 4880 1 10750 1 18500 1 11714560 1 331250 1 898437500 1 31 1 6 1 289600000 1 455000 1 115000000 1 1265625 0 2 1 29687500 0 160 1 415 1 235937500 1 765000000 1 181250 1 2968750 1 4406250 3 24800 1 1200...
result:
wrong answer Jury found better answer than participant's 1 < 2 (Testcase 321)