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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#624693#5301. Modulo Ruins the Legend2317663977WA 6ms3724kbC++231.9kb2024-10-09 16:26:222024-10-09 16:26:25

Judging History

你现在查看的是最新测评结果

  • [2024-10-09 16:26:25]
  • 评测
  • 测评结果:WA
  • 用时:6ms
  • 内存:3724kb
  • [2024-10-09 16:26:22]
  • 提交

answer

#include <iostream>
using namespace std;
#include <vector>
#include <algorithm>
#include <set>
#include <map>
#include <queue>
#include <cmath>
#include <cstring>

using ll = long long;

const int N = 1e5 + 10;
ll n, m;
ll sum;


ll gcd(ll a, ll b)
{
	if (a < b) swap(a, b);
	return b ? gcd(b, a % b) : a;
}

int exgcd(int a, int b)
{
	int x1 = 1, x2 = 0, x3 = 0, x4 = 1;
	while (b)
	{
		int c = a / b;
		tie(x1, x2, x3, x4, a, b) = make_tuple(x3, x4, x1 - x3 * c, x2 - x4 * c, b, a - b * c);
	}
	return x1;
}
void solve()
{
	int n, m, sum = 0;
	cin >> n >> m;
	for (int i = 1, x; i <= n; i++)
	{
		cin >> x;sum += x;
	}
	int a = n, b = (n + 1) * n / 2;
	int p = gcd(a, b), g = gcd(p, m);
	cout << sum % g << '\n';
	int q = exgcd(p, m);
	q = q * (((sum % g - sum) / g) % m + m) % m;
	int s = exgcd(a, b),d = (p - a * s) / b;
	s = (s % m * q % m + m) % m;
	d = (d % m * q % m + m) % m;
	cout << s << ' ' << d << '\n';
}

int main()
{
	ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	int T = 1;
	//cin >> T;
	while (T--)
	{
		solve();
	}
	return 0;
}




//ll exgcd(ll a, ll b, ll& x, ll& y)
//{
//	if (!b)
//	{
//		x = 1;
//		y = 0;
//		return a;
//	}
//	int d = exgcd(b, a % b, y, x);
//	y -= a / b * x;
//	return d;
//}
//
//
//void solve()
//{
//	cin >> n >> m;
//	for (int i = 1;i <= n;i++)
//	{
//		ll t;
//		cin >> t;
//		sum += t;
//	}
//	ll y = 0, s = 0;
//	ll ans1 = sum % gcd(n, m);
//	ll ans2 = (sum + n * (n + 1) / 2) % gcd(n, m);
//	if (ans1 <= ans2)
//	{
//		cout << ans1 << '\n';
//		ll d = exgcd(m, n, y, s);
//		s = -s;
//		s *= (sum - ans1) / gcd(n, m);
//		//ll mod = m / gcd(m, n);
//		cout << (s % m + m) % m << ' ' << 0 << '\n';
//	}
//	else
//	{
//		cout << ans2 << '\n';
//		ll d = exgcd(m, n, y, s);
//		s = -s;
//		s *= (sum + n * (n + 1) / 2 - ans2) / gcd(n, m);
//		//ll mod = m / gcd(m, n);
//		cout << (s % m + m) % m << ' ' << 1 << '\n';
//	}
//}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 1ms
memory: 3724kb

input:

6 24
1 1 4 5 1 4

output:

1
15 19

result:

ok ok

Test #2:

score: 0
Accepted
time: 1ms
memory: 3712kb

input:

7 29
1 9 1 9 8 1 0

output:

0
0 0

result:

ok ok

Test #3:

score: 0
Accepted
time: 1ms
memory: 3668kb

input:

1 1
0

output:

0
0 0

result:

ok ok

Test #4:

score: 0
Accepted
time: 0ms
memory: 3600kb

input:

1 1000000000
963837005

output:

0
0 36162995

result:

ok ok

Test #5:

score: 0
Accepted
time: 0ms
memory: 3708kb

input:

2 1
0 0

output:

0
0 0

result:

ok ok

Test #6:

score: 0
Accepted
time: 0ms
memory: 3596kb

input:

2 1000000000
948507269 461613424

output:

0
410120693 589879307

result:

ok ok

Test #7:

score: 0
Accepted
time: 3ms
memory: 3588kb

input:

100000 1
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0...

output:

0
0 0

result:

ok ok

Test #8:

score: -100
Wrong Answer
time: 6ms
memory: 3632kb

input:

100000 1000000000
253614966 278270960 980235895 498158918 928430170 216003119 852570558 948400590 239257296 897053667 294741176 38297441 382677590 406314557 609468973 854148232 314532767 738191551 158215002 5865825 920471826 380037058 356271728 749175327 28319049 208101105 953758995 896570758 521930...

output:

5
447931828 963933524

result:

wrong answer Result not equal to solution.