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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#748092 | #9597. Grade 2 | xdz_ | WA | 0ms | 3680kb | C++14 | 1.1kb | 2024-11-14 19:18:13 | 2024-11-14 19:18:14 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
#define int long long
#define fi first
#define se second
#define endl '\n'
typedef pair<int,int> PII;
int gcd(int a,int b){
return a == 0 ? b : gcd(b % a, a);
}
void solve(){
int n,x;
cin >>x>>n;
int inter = 1;//区间长度
while (inter < x)
inter <<= 1;//2的log2x(向上取整)次方
vector<int> sum(inter + 1);
for(int i = 1;i <= inter;i ++){
int z = (i * x) ^ x;
int z1 = gcd(z,x);
if(z1 == 1){
sum[i] = sum[i - 1] + 1;
}
else sum[i] = sum[i - 1];
}
for(int i=0;i<n;i++){
int l,r;
scanf("%lld%lld",&l,&r);
int ans=0;
//先求 L 左边有几个 1;
int lans=0;
lans=(l-1)/inter*sum[inter];
int ls=(l-1)%inter;
lans += sum[ls];
//在求 R 左边有几个 1;
int rans=0;
rans=(r)/inter*sum[inter];
int rs=(r)%inter;
rans += sum[rs];
ans = rans - lans;
cout<<ans<<'\n';
}
}
signed main(){
ios::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
int T;
T = 1;
// cin>>T;
while(T --){
solve();
}
}
Details
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Test #1:
score: 0
Wrong Answer
time: 0ms
memory: 3680kb
input:
15 2 1 4 11 4514
output:
3906723112781845820 3906723112781845820
result:
wrong answer 1st lines differ - expected: '2', found: '3906723112781845820'