add cpps

.gitignore

@@ -45,3 +45,5 @@ day2/U111091/fixed
 day4/T435167/T435167
 day4/U461920/U461920
 test.txt
+day4/U76034/chat
+day4/U287193/chat

README.md

@@ -37,6 +37,10 @@ int main(){
 }
 ```
 
+## Day4
+### [T435167 01 Sort](./day4/T435167/T435167.md)
+#### 通过异色中转
+
 # 排序
 ## 稳定性
 >隔着老远swap一般不稳定

day4/T435167/T435167.cpp

@@ -4,9 +4,22 @@
 using namespace std;
 #define int long long
 
+#ifdef DEBUG
+#define PRINT_VALUE(v){cout<<#v<<" :"<<v<<endl;}
+#define PRINT_ARRAY(arr,size){cout<<#arr<<" [";for(int i=1;i<=size;i++){cout<<arr[i]<<(i!=size?",":"]\n");}}
+#define DEBUG_PRINT(c){cout<<c<<endl;}
+#endif
+
+#ifndef DEBUG
+#define PRINT_VALUE(v)
+#define PRINT_ARRAY(arr,size)
+#define DEBUG_PRINT(c)
+#endif
+
 const int MAX_N = 1e3+5;
 int t,n;
 int a[MAX_N],b[MAX_N];
+vector<pair<int, int>> histories;
 
 bool checkAllEleGoUp(){
     for(int i=2;i<=n;i++){
@@ -17,7 +30,36 @@ bool checkAllEleGoUp(){
     return true;
 }
 
+void sort_fixed(){
+    for(int i=1;i<=n;i++){
+        int max_num=INT_MIN;
+        vector<int> max_dirs;
+        for (int j=i; j<=n; j++) {
+            if (max_num<a[j]) {
+                max_dirs.clear();
+                max_num=a[j];
+                max_dirs.push_back(j);
+            }
+        }
+        int swap_dir=-1;
+        for (int j=0; i<max_dirs.size(); i++) {
+            if(b[max_dirs[j]]!=b[i]){
+                swap_dir=max_dirs[j];
+                break;
+            }
+        }
+        if (swap_dir==-1) {
+            histories.clear();
+            return;
+        }else {
+            histories.push_back(make_pair(i, swap_dir));
+        }
+    }
+}
+
 signed main(){
+    cin.sync_with_stdio(false);
+    cin.tie(0);
     cin>>t;
     for(int i=1;i<=t;i++){
         bool isAllBZero=true;
@@ -40,6 +82,15 @@ signed main(){
             cout<<-1<<endl;
             continue;
         }
-        cout<<0<<endl;
+        sort_fixed();
+        if (histories.size()==0) {
+            PRINT_VALUE(histories.size());
+            cout<<-1<<endl;
+        }else {
+            cout<<histories.size()<<endl;
+            for (auto v : histories) {
+                cout<<v.first<<" "<<v.second<<endl;
+            }
+        }
     }
 }

day4/U287193/chat.cpp

@@ -0,0 +1,66 @@
+#include <bits/stdc++.h>
+using namespace std;
+const int MOD = 998244353;
+
+#ifdef DEBUG
+#define PRINT_VALUE(v){cout<<#v<<" :"<<v<<endl;}
+#define PRINT_ARRAY(arr,size){cout<<#arr<<" [";for(int i=1;i<=size;i++){cout<<arr[i]<<(i!=size?",":"]\n");}}
+#define DEBUG_PRINT(c){cout<<c<<endl;}
+#endif
+
+#ifndef DEBUG
+#define PRINT_VALUE(v)
+#define PRINT_ARRAY(arr,size)
+#define DEBUG_PRINT(c)
+#endif
+
+int main() {
+    int n, m;
+    cin >> n >> m;
+    vector<int> lim(n);
+    for (int i = 0; i < n; ++i) {
+        cin >> lim[i];
+    }
+
+    vector<vector<int>> dp(n + 1, vector<int>(m + 1, 0));
+    dp[0][0] = 1;
+
+    vector<int> positions;
+    for (int i = 1; i <= n; ++i) {
+        if (lim[i - 1] == 0) {
+            positions.push_back(i);
+        }
+    }
+    
+    int total_permutations = 1;
+    for (int i = 1; i <= positions.size(); ++i) {
+        total_permutations = (total_permutations * i) % MOD;
+    }
+
+    for (int i = 1; i <= n; ++i) {
+        if (lim[i - 1] != 0) {
+            for (int j = 0; j <= m; ++j) {
+                dp[i][j] = dp[i - 1][j];
+            }
+        } else {
+            for (int j = 0; j <= m; ++j) {
+                for (int k = 0; k < i; ++k) {
+                    if (j - k >= 0) {
+                        dp[i][j] = (dp[i][j] + dp[i - 1][j - k]) % MOD;
+                    }
+                }
+            }
+        }
+    }
+
+    int result = 0;
+    for (int j = 0; j <= m; ++j) {
+        result = (result + dp[n][j]) % MOD;
+    }
+    
+    result = (result * total_permutations) % MOD;
+
+    cout << result << endl;
+
+    return 0;
+}

day4/U461920/U461920.cpp

@@ -25,6 +25,8 @@ void set_num_times_mem(){
 }
 
 int main(){
+    cin.sync_with_stdio(false);
+    cin.tie(0);
     cin>>n;
     set_num_times_mem();
     PRINT_ARRAY(num_times,n);

day4/U76034/1.in

@@ -0,0 +1,4 @@
+3
+6 3
+4 2
+1244 1241

day4/U76034/chat.cpp

@@ -0,0 +1,92 @@
+#include <iostream>
+#include <vector>
+#include <map>
+#include <cmath>
+#define MOD 1000000007
+
+using namespace std;
+
+#ifdef DEBUG
+#define PRINT_VALUE(v){cout<<#v<<" :"<<v<<endl;}
+#define PRINT_ARRAY(arr,size){cout<<#arr<<" [";for(int i=1;i<=size;i++){cout<<arr[i]<<(i!=size?",":"]\n");}}
+#endif
+
+#ifndef DEBUG
+#define PRINT_VALUE(v)
+#define PRINT_ARRAY(arr,size)
+#endif
+
+typedef long long ll;
+
+ll power(ll a, ll b, ll mod) {
+    ll res = 1;
+    while (b > 0) {
+        if (b % 2 == 1)
+            res = (res * a) % mod;
+        a = (a * a) % mod;
+        b /= 2;
+    }
+    return res;
+}
+
+map<ll, ll> prime_factorization(ll x) {
+    map<ll, ll> factors;
+    for (ll i = 2; i * i <= x; ++i) {
+        while (x % i == 0) {
+            factors[i]++;
+            x /= i;
+        }
+    }
+    if (x > 1) {
+        factors[x]++;
+    }
+    return factors;
+}
+
+int main() {
+    ios::sync_with_stdio(false);
+    cin.tie(0);
+
+    int q;
+    cin >> q;
+    vector<pair<ll, ll>> queries(q);
+
+    for (int i = 0; i < q; ++i) {
+        cin >> queries[i].first >> queries[i].second;
+    }
+
+    const int MAXN = 1e6 + 5;
+    vector<ll> fact(2 * MAXN), invFact(2 * MAXN);
+
+    fact[0] = 1;
+    for (int i = 1; i < 2 * MAXN; ++i) {
+        fact[i] = fact[i - 1] * i % MOD;
+    }
+    invFact[2 * MAXN - 1] = power(fact[2 * MAXN - 1], MOD - 2, MOD);
+    for (int i = 2 * MAXN - 2; i >= 0; --i) {
+        invFact[i] = invFact[i + 1] * (i + 1) % MOD;
+    }
+
+    auto binomial = [&](ll n, ll k) {
+        if (n < k) return 0LL;
+        return fact[n] * invFact[k] % MOD * invFact[n - k] % MOD;
+    };
+
+    for (auto [x, n] : queries) {
+        if (n == 1) {
+            cout << (x == 1 ? 1 : 2) << '\n';
+            continue;
+        }
+        
+        map<ll, ll> factors = prime_factorization(x);
+        ll result = 1;
+        
+        for (auto [p, e] : factors) {
+            result = result * binomial(2 * n + e - 1, e) % MOD;
+        }
+        
+        cout << result << '\n';
+    }
+
+    return 0;
+}