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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#709307#5301. Modulo Ruins the Legend_FelixWA 0ms3816kbC++142.3kb2024-11-04 13:54:402024-11-04 13:54:41

Judging History

你现在查看的是最新测评结果

  • [2024-11-04 13:54:41]
  • 评测
  • 测评结果:WA
  • 用时:0ms
  • 内存:3816kb
  • [2024-11-04 13:54:40]
  • 提交

answer

// #define LawrenceSivan
#pragma GCC optimize(2)
#pragma GCC optimize(3,"Ofast","inline")

#include <bits/stdc++.h>
using namespace std;

using i64 = long long;
using u64 = unsigned long long;
using d64 = long double;

#define INF 0x3f3f3f3f
// #define int i64

constexpr int maxn = 1e5 + 5;
constexpr int base = 131;
constexpr int mod = 1e9 + 7;
constexpr double eps = 1e-8;

namespace IO {
template<typename T>
inline void read(T &x) {
    x = 0;
    T f = 1;
    char ch = getchar();

    while (!isdigit(ch)) {if (ch == '-')f = -1; ch = getchar();}

    while (isdigit(ch)) {x = x * 10 + (ch ^ 48); ch = getchar();}

    x *= f;
}

template <typename T, typename... Args>
inline void read(T &t, Args &... args) {
    read(t);
    read(args...);
}

template<typename T>
void write(T x) {
    if (x < 0)putchar('-'), x = -x;

    if (x > 9)write(x / 10);

    putchar(x % 10 + '0');
}

template<typename T, typename... Args>
void write(T t, Args... args) {
    write(t);
    putchar(' ');
    write(args...);
}
}

using namespace IO;
const int N = 1e5 + 10;
typedef long long ll;
int n, m, a[N];
ll exgcd(ll a, ll b, ll &x, ll &y) {
    if(b == 0) {
        x = 1; y = 0;
        return a;
    }
    ll t = exgcd(b, a % b, y, x); 
    y -= a / b * x;
    return t;
} 
void work(ll a, ll b, ll c, ll &qqq, ll &ppp) {
    ll x, y;
    ll g = exgcd(a, b, x, y);
    x *= (c / g); y *= (c / g);
    //cout<<b/g<<endl;
    qqq = (x %m + m) % m;
    ppp = (c - a * qqq) / b;
    return;
}
inline void solve() {
    int sum = 0;
    cin>>n>>m;
    for(int i = 1; i <= n; i++)
        cin>>a[i], sum = (sum + a[i]) % m;
    int g = __gcd((ll)n, (ll)n * (n + 1) / 2);
    int t = __gcd(g, m);
    int ze = (m - sum + t - 1) / t;
    int ans = (sum + (ll)ze * t % m) % m;
    printf("%d\n", ans);
    //cout<<(ans + m - sum) % m<<endl;
    ll s, d, k, tt;
    work(g, m, ans - sum, k, tt);
    work(n, (ll)n * (n + 1) / 2, (ll)k * g, s, d);
    printf("%lld %lld\n", (s % m + m) % m, (d % m + m) % m);
    return;
}
signed main() {
#ifdef LawrenceSivan
    // freopen("a.in", "r", stdin);
    freopen("a.txt", "w", stdout);
#endif

    int T = 1;
    // cin >> T;

    while (T--) {
        solve();
    }

    return 0;
}
/*


*/

Details

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Test #1:

score: 0
Wrong Answer
time: 0ms
memory: 3816kb

input:

6 24
1 1 4 5 1 4

output:

1
15 23

result:

wrong answer Result not equal to solution.