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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#147486#5661. Multi-LaddersTJ_AndevikingAC ✓1ms3592kbC++201.1kb2023-08-23 10:47:582023-08-25 01:33:09

Judging History

你现在查看的是最新测评结果

  • [2023-08-25 01:33:09]
  • 评测
  • 测评结果:AC
  • 用时:1ms
  • 内存:3592kb
  • [2023-08-23 10:47:58]
  • 提交

answer

#pragma GCC optimize(2)
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef __int128_t int128;
typedef pair<int, int> pii;
#define iofast ios::sync_with_stdio(false),cin.tie(0),cout.tie(0)
#define lowbit(x) (x&(-x))
#define inv(x) qpow(x,mod-2)
#define debug(x) cout << (#x) << " = " << x << endl
#define range(x) (x).begin(), (x).end()

const int iINF = 0x3f3f3f3f;
const ll llINF = 0x3f3f3f3f3f3f3f3f;
const ll mod = 1000000007;
ll qpow(ll a, ll b)
{
    ll ans = 1;
    a %= mod;
    for (; b;b >>= 1) {
        if (b & 1)
            ans = ans * a % mod;
        a = a * a % mod;
    }
    return ans % mod;
}
/*---------------------------------------*/

void solve()
{
    ll n, k, m;
    cin >> n >> k >> m;
    ll ans = 0;
    if (k % 2 == 0)
        ans = qpow(m - 1, k) + m - 1;
    else
        ans = qpow(m - 1, k) - m + 1;
    (ans += mod) %= mod;

    (ans *= qpow(qpow(m * m - 3 * m + 3, n - 1), k)) %= mod;
    cout << ans << '\n';
}

/*---------------------------------------*/

int main()
{
    iofast;
    int t = 1;
    cin >> t;
    while (t--)
        solve();

    return 0;
}

详细

Test #1:

score: 100
Accepted
time: 1ms
memory: 3572kb

input:

1
2 3 3

output:

162

result:

ok single line: '162'

Test #2:

score: 0
Accepted
time: 0ms
memory: 3592kb

input:

20
2 3 3
1 3 3
10 3 0
10 3 2
1 21 2
1 22 0
2000 15000 2000
12000 30000 200000
1000000000 3 3
2 1000000000 3
2 3 100000000
1000000000 1000000000 10
1000000000 3 100000000
2 1000000000 100000000
1 1000000000 10
1 1000000000 100000000
1 1000 100000000
1000000000 1000000000 0
1000000000 1000000000 1
100...

output:

162
6
0
0
0
0
349400141
243010659
52489881
53690844
176686901
218103365
558243892
991895211
693053429
883715672
80402569
0
0
311752813

result:

ok 20 lines