U88589

day10/U88589/U88589.cpp

@@ -0,0 +1,121 @@
+/*
+[set容器]
+- `1 x`: 插入一个值为 $x$ 的数；
+
+- `2 x`: 删除一个值为 $x$ 的数，保证存在，若有多个只删除 $1$ 个；
+
+- `3 l r`: 询问所有满足 $l\le x\le r$ 的 $x$ 的和；[排序]
+
+- `4 x`: 询问集合中 <= x 的最大数，若没有输出 `-1`；
+
+- `5 x`: 询问集合中 >= x 的最小数，若没有输出 `-1`；
+
+1 2 
+
+*/
+
+#include<bits/stdc++.h>
+using namespace std;
+#define int long long
+
+const int MAX_X=1e5+5;
+int q;
+vector<int>v(MAX_X);
+set<int> s;
+int getint();
+
+signed main(signed argc,char *argv[]){
+    #ifdef OITEST
+        cout<<"TESTING"<<endl;
+        #define AS(c){if(!(c)){cerr<<"assert failed:"<<#c<<endl;return -1;}}
+        #define ASM(a,b){if((a)!=(b)){cerr<<"assert failed: "<<a<<endl<<b<<endl;return 1;}}
+        AS(argc==3)
+        auto fin = freopen(argv[1],"r",stdin);
+        AS(fin!=NULL)
+        ifstream afile(argv[2]);
+        stringstream ss;
+        #define cout ss
+        int ans_num = 0;
+    #endif
+    q=getint();
+    for(int i=1;i<=q;i++){
+        const int n=getint();
+        #ifdef OITEST
+            if(n>=3){
+                ans_num++;
+            }
+        #endif
+        if(n==1){
+            const int x=getint();
+            /*auto state = */s.insert(x);
+            if(x>=v.size())v.resize(x+1);
+            v[x]++;
+        }else if (n==2) {
+            const int x=getint();
+            v[x]--;
+            if(v[x]==0){s.erase(x);}
+        }else if(n==3){
+            const int l=getint(),r=getint();
+            const auto sl=s.lower_bound(l)
+                        ,sr=s.lower_bound(r);
+            int ans=0;
+            for(auto i=sl;i!=sr;i++){
+                ans+=(*i)*v[(*i)];
+            }
+            if ((*sr)==r) {
+                ans+=(*sr)*v[(*sr)];
+            }
+            cout<<ans<<endl;
+        }else if(n==4){
+            const int x=getint();
+            // if(x==99){
+            //     cerr<<"debugging"<<endl;
+            // }
+            auto it=s.lower_bound(x);
+            if((*it)==x){
+                cout<<x<<endl;
+                continue;
+            }else{
+                it--;
+                if((*it)<x){
+                    cout<<(*it)<<endl;
+                    continue;
+                }else{
+                    cout<<-1<<endl;
+                    continue;
+                }
+            }
+            cout<<(*it)<<endl;
+        }else if(n==5){
+            const int x=getint();
+            auto it=s.lower_bound(x);
+            if(it==s.end()){
+                cout<<-1<<endl;
+                continue;
+            }
+            cout<<(*it)<<endl;
+        }
+    }
+    #ifdef OITEST
+        for(int i=1;i<=ans_num;i++){
+            int cans ,myans;
+            afile>>cans;
+            ss>>myans;
+            ASM(cans,myans)
+        }
+    #endif
+}
+
+int getint(){
+    int x=0,w=1;
+    char ch=0;
+    while(!isdigit(ch)){
+        if(ch=='-')w=-1;
+        ch=getchar();
+    }
+    while(isdigit(ch)){
+        x=x*10+(ch-'0');
+        ch=getchar();
+    }
+    return x*w;
+}

test.cpp

@@ -1,4 +1,13 @@
 #include<bits/stdc++.h>
+using namespace std;
+
 int main(){
-    
+    set<int>s;
+    s.insert(2);
+    s.insert(3);
+    auto it = s.lower_bound(2);
+    cout<<(*(--it))<<endl;
+    cout<<(*(++it))<<endl;
+    cout<<(*(--it))<<endl;
+    cout<<(*(--it))<<endl;
 }

xmake.lua

@@ -89,10 +89,19 @@ target("U279656")
         add_tests(s,{files="./day8/U279656/*.cpp",runargs={"seg"..s..".in","seg"..s..".ans"},defines="OITEST",run_timeout=1000})
     end
 
-    target("P2580")
-        set_rundir("./day9/P2580")
-        add_files("./day9/P2580/*.cpp")
-        for v=1,2 do
-            local s=tostring(v)
-            add_tests(s,{files="./day9/P2580/*.cpp",runargs={"P2580_"..s..".in","P2580_"..s..".out"},defines="OITEST",run_timeout=1000})
-        end 
+target("P2580")
+    set_rundir("./day9/P2580")
+    add_files("./day9/P2580/*.cpp")
+    for v=1,2 do
+        local s=tostring(v)
+        add_tests(s,{files="./day9/P2580/*.cpp",runargs={"P2580_"..s..".in","P2580_"..s..".out"},defines="OITEST",run_timeout=1000})
+    end 
+
+target("U88589")
+    set_rundir("./day10/U88589")
+    add_files("./day10/U88589/*.cpp")
+    -- add_defines("OITEST")
+    for v=1,2 do 
+        local s=tostring(v)
+        add_tests(s,{files="./day10/U88589/*.cpp",runargs={s..".in",s..".ans"},defines="OITEST",run_timeout=1000})
+    end