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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#499344 | #8520. Xor Partitions | Decade# | WA | 1ms | 5740kb | C++17 | 2.0kb | 2024-07-31 13:00:47 | 2024-07-31 13:00:48 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
#define int long long
typedef long long LL;
typedef unsigned long long ull;
typedef pair<int, int> PII;
mt19937 rng;
uniform_int_distribution <ull> dist(0,1ull<<63);
//#define mp make_pair
inline void print(__int128 x){//输出模板
if(x<0){
putchar('-');
x=-x;
}
if(x>9) print(x/10);
putchar(x%10+'0');
}
inline int read()
{
int X = 0;
bool flag = 1;
char ch = getchar();
while (ch < '0' || ch > '9')
{
if (ch == '-')
flag = 0;
ch = getchar();
}
while (ch >= '0' && ch <= '9')
{
X = (X << 1) + (X << 3) + ch - '0';
ch = getchar();
}
if (flag)
return X;
return ~(X - 1);
}
const LL mod = 1e9 + 7,INF = 0x3f3f3f3f;
LL qpow(LL a, LL b)
{
LL res = 1;
a %= mod;
assert(b >= 0);
for (; b; b >>= 1)
{
if (b & 1)
res = res * a % mod;
a = a * a % mod;
}
return res;
}
inline int gcd(int a, int b) { return b == 0 ? a : gcd(b, a % b); }
inline int lcm(int a, int b) { return a / gcd(a, b) * b; }
const int N = 300010,M = 1000010;
int f[N],a[N],val[70][2],tmp[70];
void solve()
{
int n;
cin>>n;
for(int i=1;i<=n;i++) cin>>a[i];
f[0] = 1;
for(int i=1;i<=n;i++)
{
int t = a[i],idx = 0;
for(int j=0;j<=60;j++) tmp[j] = 0;
while(t)
{
tmp[idx++] = t%2;
t >>= 1;
}
for(int j=0;j<=60;j++)
{
if(tmp[j])
{
swap(val[j][0],val[j][1]);
}
}
for(int j=0;j<=60;j++) (val[j][tmp[j]] += f[i-1]) %= mod;
for(int j=0;j<=60;j++) f[i] += (1<<j)*val[j][1]%mod,f[i] %= mod;
}
cout<<f[n]<<'\n';
}
signed main()
{
ios::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
int t = 1;
//cin>>t;
while (t--)
solve();
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 1ms
memory: 5648kb
input:
4 7 3 1 2
output:
170
result:
ok 1 number(s): "170"
Test #2:
score: 0
Accepted
time: 1ms
memory: 5648kb
input:
1 0
output:
0
result:
ok 1 number(s): "0"
Test #3:
score: 0
Accepted
time: 1ms
memory: 5636kb
input:
1 1
output:
1
result:
ok 1 number(s): "1"
Test #4:
score: 0
Accepted
time: 1ms
memory: 5648kb
input:
3 1 2 3
output:
16
result:
ok 1 number(s): "16"
Test #5:
score: 0
Accepted
time: 0ms
memory: 5704kb
input:
4 0 1 0 1
output:
2
result:
ok 1 number(s): "2"
Test #6:
score: -100
Wrong Answer
time: 1ms
memory: 5740kb
input:
562 918479109239293921 960173570446350728 374394588863436385 418106819278123099 473761712658352147 662782574081105364 824954323015093862 827581845536521847 184394794881199801 820907621998888642 606529830885621237 961790689782125501 582742201855597942 337901250755571075 287706594894797714 18578215893...
output:
910272497
result:
wrong answer 1st numbers differ - expected: '641941658', found: '910272497'