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Author: tadhikari

4 thought/4 thought.py

@@ -0,0 +1,33 @@
+'''https://open.kattis.com/problems/4thought'''
+
+def fours(n):
+
+    if n>256 or n<-256:
+        return None
+
+    
+
+    usage = ['+', '-','//','*']
+
+    for i in usage:
+        for j in usage:
+            for k in usage:
+                combination = '4 '+i+' 4 '+j+' 4 '+k+' 4'
+                #print(i,j,k,' ==> ',combination,' ==> ',eval(combination))
+                if eval(combination) == n:
+                    if '//' in combination:
+                        combination = combination.replace('//','/')
+
+                    return combination + ' = {}'.format(n)
+    
+
+
+times = int(input())
+
+for i in range(times):
+    result = fours(int(input()))
+    if result == None:
+        print('no solution')
+
+    else:
+        print(result)