update

src/8/1/P2467.cpp

@@ -0,0 +1,46 @@
+/*
+1324 1423
+13254 14253 15324 15423
+
+*/
+
+#include <algorithm>
+#include <cstdint>
+#include <cstdio>
+#include <iostream>
+#include <numeric>
+#include <vector>
+using ll = int64_t;
+
+int main(){
+    return 0;
+    for(ll i=3;i<=6;i++){
+        printf("[%lld]\n",i);
+        static std::vector<ll> v;
+        v.clear();
+        v.resize(i);
+        for(ll i=0;i<v.size();i++)v[i]=i+1;
+        ll sum=0;
+        while (std::next_permutation(v.begin(),v.end())) {
+            if(v[0]!=1)continue;
+            ll now=-1;
+            if(v[0]<v[1])now=1;
+            else now=0;
+            for(ll i=2;i<v.size();i++){
+                if((now==1&&v[i-1]<v[i]) || (now==0&&v[i-1]>v[i])){
+                    goto next;
+                }else{
+                    if(v[i-1]<v[i])now=1;
+                    else now=0;
+                }
+            }
+            for (ll i=0; i<v.size(); i++) {
+                std::cout<<v[i]<<" ";
+            }
+            std::cout<<'\n';
+            sum++;
+            next:;
+        }
+        printf("sum: %lld\n",sum);
+    }
+}

src/8/2/T644759.cpp

@@ -0,0 +1,38 @@
+#include <cstdint>
+#include <iostream>
+#include <istream>
+#include <string>
+#include <vector>
+
+using ll = int64_t;
+static inline constexpr std::string cvtfd(ll n,ll b){
+    std::string s;
+    do{
+        ll c=n%b;
+        s=char(c+'0')+s;
+        n/=b;
+    }while(n);
+    return s;
+}
+ll k,q;
+std::vector<char> d;
+int main(){
+    std::iostream::sync_with_stdio(false);
+    std::cin>>k;
+    d.resize(k);
+    for(char&c:d){
+        ll tmp;
+        std::cin>>tmp;
+        c=tmp+'0';
+    }
+    std::cin>>q;
+    while(q--){
+        ll n;
+        std::cin>>n;
+        std::string s = cvtfd(n,d.size());
+        for(char c:s){
+            std::cout<<d[c-'0'];
+        }
+        std::cout<<'\n';
+    }
+}

src/8/2/lucky1.ans

@@ -0,0 +1,4 @@
+1
+2
+11
+12

src/8/2/lucky1.in

@@ -0,0 +1,7 @@
+2
+1 2
+4
+1
+2
+3
+4