QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#658138 | #5301. Modulo Ruins the Legend | 666ldc | WA | 6ms | 3660kb | C++17 | 1.7kb | 2024-10-19 16:13:56 | 2024-10-19 16:14:03 |
Judging History
answer
#pragma GCC optimize(2)
#pragma GCC optimize(3, "Ofast", "inline")
#include <bits/stdc++.h>
using namespace std;
#define x first
#define y second
#define int long long
#define endl '\n'
using i128 = __int128;
using i64 = long long;
using f128 = long double;
using u64 = unsigned long long;
using pii = pair<int, int>;
const int INF = 0x3f3f3f3f, mod = 1e9 + 7;
const i64 inf = 2e18;
//-------------------------------------------
// 求x, y,使得ax + by = gcd(a, b)
int exgcd(int a, int b, int &x, int &y)
{
if (!b)
{
x = 1;
y = 0;
return a; // 到达递归边界开始向上一层返回
}
int d = exgcd(b, a % b, x, y);
int temp = y; // 推出这一层的x,y
y = x - (a / b) * y;
x = temp;
return d;
}
// x = x0 + (b / __gcd (a,b)) * t;
// y = y0 - (a / __gcd (a,b)) * t;
// 若有解 c 应该是 gcd (a,b) 的倍数
void solve()
{
int n, m;
cin >> n >> m;
int sum = 0;
for (int i = 1, a; i <= n; i++)
{
cin >> a;
sum += a;
}
int A = n, B = n * (n + 1) / 2;
int g1 = __gcd(A, B), g2 = __gcd(g1, m);
int ans = sum % g2;
cout << ans << endl;
int x, y, t, k;
exgcd(g1, m, k, t);
int kk = ((ans - sum) / g2);
k = k * kk, t = t * kk;
int C = ans - sum - t * m;
exgcd(A, B, x, y);
int kkk = (C / g1);
x = (x % m * kkk % m) % m, y = (y % m * kkk % m);
cout << (x % m + m) % m << " " << (y % m + m) % m << endl;
}
signed main()
{
ios::sync_with_stdio(false);
cin.tie(nullptr);
cout.tie(nullptr);
int T = 1;
// cin >> T;
for (int i = 1; i <= T; i++)
solve();
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3596kb
input:
6 24 1 1 4 5 1 4
output:
1 15 19
result:
ok ok
Test #2:
score: 0
Accepted
time: 0ms
memory: 3644kb
input:
7 29 1 9 1 9 8 1 0
output:
0 0 0
result:
ok ok
Test #3:
score: 0
Accepted
time: 0ms
memory: 3656kb
input:
1 1 0
output:
0 0 0
result:
ok ok
Test #4:
score: 0
Accepted
time: 0ms
memory: 3652kb
input:
1 1000000000 963837005
output:
0 0 36162995
result:
ok ok
Test #5:
score: 0
Accepted
time: 0ms
memory: 3652kb
input:
2 1 0 0
output:
0 0 0
result:
ok ok
Test #6:
score: 0
Accepted
time: 0ms
memory: 3660kb
input:
2 1000000000 948507269 461613424
output:
0 410120693 589879307
result:
ok ok
Test #7:
score: 0
Accepted
time: 3ms
memory: 3596kb
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: 0
Accepted
time: 3ms
memory: 3656kb
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:
46613 535950000 999089281
result:
ok ok
Test #9:
score: -100
Wrong Answer
time: 6ms
memory: 3660kb
input:
100000 998244353 561002596 498658036 721339539 63377827 532179242 934651519 234198881 490149304 2056307 499913682 427679408 694677560 516580968 300129454 816286800 688594301 183049581 456627420 495848352 273497462 953217060 796225499 207179832 728054671 409492082 25003432 810431468 206421553 5569626...
output:
0 979221094 331357611
result:
wrong answer Result not equal to solution.