update

CMakeLists.txt

@@ -16,27 +16,10 @@ message("Build type is [${CMAKE_BUILD_TYPE}]")
 
 project(algorithm_2024)
 
-add_executable(P1031 ${CMAKE_CURRENT_LIST_DIR}/P1031/main.cpp)
+file(GLOB_RECURSE SRC_LIST CONFIGURE_DEPENDS ${CMAKE_CURRENT_LIST_DIR}/src/*.cpp)
-add_executable(P1031_pro ${CMAKE_CURRENT_LIST_DIR}/P1031/pro.cpp)
 
-add_executable(P2661 ${CMAKE_CURRENT_LIST_DIR}/P2661/main.cpp)
+foreach(SRC IN LISTS SRC_LIST)
-add_executable(P2661_video ${CMAKE_CURRENT_LIST_DIR}/P2661/video.cpp)
+    get_filename_component(SRC_NAME_WE ${SRC} NAME_WE)
-
+    message("[${SRC}] will be build to [${SRC_NAME_WE}]")
-add_executable(P2615 ${CMAKE_CURRENT_LIST_DIR}/P2615/P2615.cpp)
+    add_executable(${SRC_NAME_WE} ${SRC})
-
+endforeach()
-add_executable(P7076 ${CMAKE_CURRENT_LIST_DIR}/P7076/P7076.cpp)
-add_executable(P7075 ${CMAKE_CURRENT_LIST_DIR}/P7075/P7075.cpp)
-
-add_executable(P1003 ${CMAKE_CURRENT_LIST_DIR}/P1003/P1003.cpp)
-
-add_executable(P1311 ${CMAKE_CURRENT_LIST_DIR}/P1311/P1311.cpp)
-
-add_executable(P4017 ${CMAKE_CURRENT_LIST_DIR}/P4017/P4017.cpp)
-
-add_executable(P2782 ${CMAKE_CURRENT_LIST_DIR}/P2782/P2782.cpp)
-
-add_executable(P1091 ${CMAKE_CURRENT_LIST_DIR}/P1091/P1091.cpp)
-
-add_executable(P1020 ${CMAKE_CURRENT_LIST_DIR}/P1020/P1020.cpp)
-
-add_executable(U206625 ${CMAKE_CURRENT_LIST_DIR}/U206625/U206625.cpp)

U206625/U206625.cpp

@@ -1,20 +0,0 @@
-#include <iostream>
-#include <string>
-#include <stack>
-
-using std::cin, std::cout, std::string, std::stack;
-
-constexpr size_t MOD {998244353}, MAX_N {(size_t)3e5+5};
-string s;
-stack<size_t> st;
-unsigned int dp[MAX_N], ans, n;
-
-int main(){
-    cin>>s;
-    
-    for(size_t i {0};i<s.size();i++){
-        for(size_t j {0};j<s.size();j++){
-
-        }
-    }
-}

U482031/U482031.cpp

@@ -1,3 +0,0 @@
-//
-// Created by Zengt on 2024/10/5.
-//

src/U206625/U206625.cpp

@@ -0,0 +1,52 @@
+#include <iostream>
+#include <string>
+#include <stack>
+#include <cmath>
+#include <array>
+
+using std::cin, std::cout, std::string, std::stack, std::array;
+
+constexpr size_t MOD {998244353}, MAX_N {(size_t)3e5+5};
+string s;
+stack<size_t> st;
+unsigned int prefix[MAX_N], ans, sum, left_num;
+constexpr size_t char_size {1<<(sizeof(char)*8)};
+constexpr array<int,char_size> install_array(){
+    array<int,char_size> ret{};
+    ret[40]=1;
+//    ret[40]=1,ret[41]=-1;
+    return ret;
+}
+constexpr array<int,char_size> map = install_array();
+
+int main(){
+//    cout<<(int)'('<<' '<<(int)')'<<'\n'<<map[40]<<'\n';
+    cin>>s;
+    for(size_t i {0};i<s.size();i++){
+        for(size_t j {i+1};j<=s.size();j++){
+//            sum=0;
+            for(size_t k{i};k<j;k++){
+                for(size_t l{k+1};l<=j;l++){
+                    left_num = 0;
+                    for(size_t m{k};m<l;m++){
+                        left_num+=map[s[m]];
+                        if(left_num<0){
+                            goto failed;
+                        }
+                        if(s[m]==')'){
+                            if(left_num<=0){
+                                goto failed;
+                            }
+                            left_num--;
+                        }
+                    }
+                    if(left_num==0){
+                        ans=(ans+1)%MOD;
+                    }
+                    failed:;
+                }
+            }
+        }
+    }
+    cout<<ans<<'\n';
+}

src/U482031/U482031.cpp

@@ -0,0 +1,59 @@
+#include <iostream>
+#include <string>
+#include <ranges>
+#include <vector>
+
+using std::cin, std::cout, std::string, std::vector, std::iostream;
+constexpr auto range = std::ranges::views::iota;
+
+int n;
+string s;
+int a_num, b_num;
+char max_char, min_char;
+
+struct Ope{
+    const size_t start,end;
+    const char c;
+};
+vector<Ope> v;
+
+void print()noexcept{
+    cout<<v.size()<<'\n';
+    for(auto &i:v){
+        cout<<i.start+1<<' '<<i.end+1<<' '<<i.c<<'\n';
+    }
+}
+
+int main(){
+    iostream::sync_with_stdio(false), cin.tie(0), cout.tie(0);
+    cin>>n;
+    cin>>s;
+    for(const int i:range(0,n)){
+        if(s[i]=='A') {
+            a_num++;
+        }else if(s[i]=='B'){
+            b_num++;
+        }
+    }
+    if(a_num>=b_num){
+        max_char = 'A';
+        min_char = 'B';
+    }else{
+        max_char = 'B';
+        min_char = 'A';
+    }
+    v.push_back({0,(size_t)n-1,max_char});
+    for(size_t i=0;i<n;i++){
+        if(s[i]==min_char){
+            size_t end {i};
+            for(size_t j=i+1;j<n;j++){
+                if(s[j]!=min_char)break;
+                end=j;
+            }
+            v.push_back({i,end,min_char});
+            i=end+1;
+        }
+    }
+
+    print();
+}