algorithm fix

backend/app.js

@@ -257,6 +257,7 @@ function MakePairsV3(callback){
       tree = [];
       done=false;
 
+      while(max_pairs>0){
         for (let i=0;i<names.length;i++){
           for (let j=0;j<=i;j++){
             if (matrix[i][j] === 0){
@@ -266,6 +267,11 @@ function MakePairsV3(callback){
           }
           if (done) break;
         }
+        if (done) break;
+        max_pairs--;
+      }
+
+      
 
       let max_count_index = 0;