diff --git a/1799_01choesornot/01choseornot.cpp b/1799_01choesornot/01choseornot.cpp
new file mode 100644
index 0000000..0b35af7
--- /dev/null
+++ b/1799_01choesornot/01choseornot.cpp
@@ -0,0 +1,20 @@
+#include<iostream>
+using namespace std;
+int main(){
+    long long n,m,f[52][6]={0};
+    cin>>n>>m;
+    f[0][0]=1;
+    f[1][0]=1;
+    for(int i=1;i<=n;i++){
+        //cout<<f[i][0]<<" ";
+        f[i+1][0]=f[i][0];
+        for(int j=1;j<=m-1;j++){
+            f[i][j]=f[i-1][j-1];
+            f[i+1][0]+=f[i][j];
+            if(j==i) break;
+            //cout<<f[i][j]<<" ";
+        }
+        //cout<<endl;
+    }
+    cout<<f[n+1][0];
+}
\ No newline at end of file
diff --git a/1799_01choesornot/01choseornot.exe b/1799_01choesornot/01choseornot.exe
new file mode 100644
index 0000000..d9df2cd
Binary files /dev/null and b/1799_01choesornot/01choseornot.exe differ
diff --git a/1799_01choesornot/test/in.txt b/1799_01choesornot/test/in.txt
index e69de29..3b0943e 100644
--- a/1799_01choesornot/test/in.txt
+++ b/1799_01choesornot/test/in.txt
@@ -0,0 +1 @@
+4 3
\ No newline at end of file
diff --git a/1799_01choesornot/test/in2.txt b/1799_01choesornot/test/in2.txt
new file mode 100644
index 0000000..5027aa5
--- /dev/null
+++ b/1799_01choesornot/test/in2.txt
@@ -0,0 +1 @@
+5 3
\ No newline at end of file
diff --git a/1799_01choesornot/test/in3.txt b/1799_01choesornot/test/in3.txt
new file mode 100644
index 0000000..316bd14
--- /dev/null
+++ b/1799_01choesornot/test/in3.txt
@@ -0,0 +1 @@
+3 2
\ No newline at end of file
diff --git a/1799_01choesornot/test/ince.txt b/1799_01choesornot/test/ince.txt
new file mode 100644
index 0000000..711b5e1
--- /dev/null
+++ b/1799_01choesornot/test/ince.txt
@@ -0,0 +1 @@
+49 5
\ No newline at end of file
diff --git a/1799_01choesornot/test/ince2.txt b/1799_01choesornot/test/ince2.txt
new file mode 100644
index 0000000..17cc5ad
--- /dev/null
+++ b/1799_01choesornot/test/ince2.txt
@@ -0,0 +1 @@
+49 2
\ No newline at end of file
diff --git a/1799_01choesornot/test/out.txt b/1799_01choesornot/test/out.txt
index 35a20e6..1bdf85b 100644
--- a/1799_01choesornot/test/out.txt
+++ b/1799_01choesornot/test/out.txt
@@ -1,7 +1,30 @@
-## z:\Chao\src\Template\test\in.txt 
-2020/03/14 周六 11:41:28.68 
-Hello Easy C++ project!
-
+## z:\Chao\src\1799_01choesornot\test\in.txt 
+2020/03/22 周日 13:02:25.04 
+13
 -----------------------------------------------
 Process exited after 200 ms with return value 0
 
+## z:\Chao\src\1799_01choesornot\test\in2.txt 
+2020/03/22 周日 13:02:25.04 
+24
+-----------------------------------------------
+Process exited after 90 ms with return value 0
+
+## z:\Chao\src\1799_01choesornot\test\in3.txt 
+2020/03/22 周日 13:02:25.04 
+5
+-----------------------------------------------
+Process exited after 80 ms with return value 0
+
+## z:\Chao\src\1799_01choesornot\test\ince.txt 
+2020/03/22 周日 13:02:25.04 
+256641310658978
+-----------------------------------------------
+Process exited after 90 ms with return value 0
+
+## z:\Chao\src\1799_01choesornot\test\ince2.txt 
+2020/03/22 周日 13:02:25.04 
+20365011074
+-----------------------------------------------
+Process exited after 80 ms with return value 0
+