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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#682489 | #5301. Modulo Ruins the Legend | absabs | WA | 0ms | 3604kb | C++23 | 3.6kb | 2024-10-27 15:40:45 | 2024-10-27 15:40:46 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define endl "\n"
#define ull unsigned long long
#define ms(x, y) memset(x, y, sizeof x);
#define debug(x) cout << #x << " = " << x << endl;
#define ios ios::sync_with_stdio(false), cin.tie(nullptr), cout.tie(nullptr);
#define fre \
freopen("input.txt", "r", stdin); \
freopen("output.txt", "w", stdout);
const int mod = 998244353;
const int inf = 0x3f3f3f3f3f3f3f3f;
const int N = 1e6 + 10;
const double esp = 1e-6;
const ull MOD1 = 1610612741;
const ull MOD2 = 805306457;
const ull BASE1 = 1331;
const ull BASE2 = 131;
#define pre(i, a, b) for (int i = a; i <= b; i++)
#define rep(i, a, b) for (int i = a; i >= b; i--)
#define all(x) (x).begin(), (x).end()
char *p1, *p2, buf[100000]; // 快读和同步流二者只能选一个
#define nc() (p1 == p2 && (p2 = (p1 = buf) + fread(buf, 1, 100000, stdin), p1 == p2) ? EOF : *p1++)
int read()
{
int x = 0, f = 1;
char ch = nc();
while (ch < 48 || ch > 57)
{
if (ch == '-')
f = -1;
ch = nc();
}
while (ch >= 48 && ch <= 57)
x = x * 10 + ch - 48, ch = nc();
return x * f;
}
void write(int x)
{
if (x < 0)
putchar('-'), x = -x;
if (x > 9)
write(x / 10);
putchar(x % 10 + '0');
return;
}
int n,m;
int a[N];
int exgcd(int a,int b,int &x,int &y)//扩展欧几里得算法 ,求出来的结果是方程变换后右值等于 gcd 的系数 x y
{
if(b == 0)
{
x = 1,y = 0;
return a;
}
int ret = exgcd(b,a%b,y,x);
y -= a / b * x;
return ret;
}
void solve()
{
cin >> n >> m;
int sum = 0;
pre(i,1,n) cin >> a[i],sum += a[i];
sum %= m;
int d1 = __gcd(n * (n + 1) / 2,n);
int d2 = n * (n + 1) / 2,d3 = n;
if(sum == 0)
{
cout << 0 << "\n" << "0 0" << endl;
return ;
}
sum = m - sum;
if(sum % d1 == 0)
{
cout << 0 << endl << 1 << endl << 1 << endl;
return ;
}
int ans = inf;
pre(i,0,2 * d1)
{
if((sum + i) % d1 == 0)
{
ans = min(ans,(sum + i) % sum);
// cout << i << endl;
// return ;
}
// if((sum - i) % d1 == 0)
// {
// ans = min(ans,m - i);
// // return ;
// }
}
int x = 0,y = 0;
//现在 的数据是 sum + ans
exgcd(n * (n + 1) / 2,n,x,y);
// cout << x << " " << y << endl;
// cout << sum + ans << endl;
// cout << d1 << endl;
x = (x + m) % m;
y = (y + m) % m ;
cout << ans << "\n" << x << " " << y << endl;
// pre(i,0,d2)
// {
// if((sum + i) % d1 == 0)
// {
// ans = min(ans,i);
// return ;
// }
// if((sum - i) % d1 == 0)
// {
// ans = min(ans,m - i);
// return ;
// }
// }
// pre(i,0,d3)
// {
// if((sum + i) % d1 == 0)
// {
// ans = min(ans,i);
// return ;
// }
// if((sum - i) % d1 == 0)
// {
// ans = min(ans,m - i);
// return ;
// }
// }
// cout << ans << " " <<
}
// #define LOCAL
signed main()
{
ios
// fre
#ifdef LOCAL
freopen("in.txt", "r", stdin);
freopen("out.txt", "w", stdout);
auto start = std::chrono::high_resolution_clock::now();
#endif
int t = 1;
// cin >> t;
while (t--)
solve();
#ifdef LOCAL
auto end = std::chrono::high_resolution_clock::now();
cout << "Execution time: "
<< std::chrono::duration_cast<std::chrono::milliseconds>(end - start).count()
<< " ms" << '\n';
#endif
return 0;
}
Details
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Test #1:
score: 0
Wrong Answer
time: 0ms
memory: 3604kb
input:
6 24 1 1 4 5 1 4
output:
1 1 21
result:
wrong answer Result not equal to solution.