delete pics to save space

2.11809.cpp

@@ -0,0 +1,37 @@
+#include<iostream>
+#include<sstream>
+#include<cmath>
+using namespace std;
+long long E[12][33],e;
+double M[12][33],m,re;
+char str[25],*ps;
+int main()
+{
+    for(int i=0;i<=9;++i)
+        for(int j=1;j<=30;++j)
+		{
+            m=1-pow(2,-1-i);
+            e=pow(2,j)-1;
+            re=log10(m)+log10(2)*e;
+            E[i][j]=(long long)re;
+            M[i][j]=pow(10,(re-E[i][j]));
+        }
+    while((cin>>str)&&(ps=str)!="0e0")
+	{
+        while(*++ps != 'e');*ps = ' ';
+        istringstream s(str);
+        s>>m>>e;
+        for(int i=0;i<=9;++i)//M
+		{
+            int j;
+            for(j=1;j<=30;++j)//E
+                if(E[i][j]==e&&(M[i][j]-m<0.0001&&m-M[i][j]<0.0001))
+				{
+                    cout<<i<<' '<<j<< '\n';
+                    break;
+            	}
+            if(j<=30) break;
+        }
+    }
+    return 0;
+}