Create WaterOverflow.cpp

geeks-for-geeks/dynamic-programming/WaterOverflow.cpp

@@ -0,0 +1,72 @@
+#include<iostream>
+using namespace std;
+
+typedef long long int lli;
+float from(int i,int j,int k){
+    if(i==j&&i==0)
+        return ((float)k-1)/2.0;
+    //cout<<"y";
+    int uli=i-1,ulj=j-1;
+    int uri=i-1,urj=j;
+    float ur,ul;
+    if(ulj>=0)
+        ul=from(uli,ulj,k);
+    else
+        ul=0.0;
+
+    if(uri>=urj)
+        ur=from(uri,urj,k);
+    else
+        ur=0.0;
+
+    float n=ul + ur;
+
+    n=(n-1)/2.0;
+    if(n>=0)
+    	return n;
+    else
+    	return 0;
+
+}
+float how_much_in(int i,int j,int k){
+	if(i==j && i==0){
+		return 1;
+	}
+    int uli=i-1,ulj=j-1;
+    int uri=i-1,urj=j;
+    float ul,ur;
+    if(ulj>=0)
+        ul=from(uli,ulj,k);
+    else
+        ul=0.0;
+
+    if(uri>=urj)
+        ur=from(uri,urj,k);
+    else
+        ur=0.0;
+
+    float n=ul+ur;
+    //cout<<n<<" ";
+    if ( n>1)
+    	return 1;//(n - (n-1)/2 + (n-1)/2);
+    else if(n>=0)
+    	return n;
+    else
+    	return 0;
+}
+int main() {
+	//code
+	int t;
+	cin>>t;
+	int k,i,j;
+    while(t-->0){
+        cin>>k;
+        cin>>i>>j;
+        cout<< how_much_in(i-1,j-1,k)<<'\n';
+
+
+
+
+    }
+	return 0;
+}