From 2e1ef74f31e8b9dd493b7b6274ba99b42355698a Mon Sep 17 00:00:00 2001
From: Swastika Gupta <64654203+Swastyy@users.noreply.github.com>
Date: Sat, 31 Jul 2021 15:47:01 +0530
Subject: [PATCH] Update karatsuba_algorithm_for_fast_multiplication.cpp

---
 .../karatsuba_algorithm_for_fast_multiplication.cpp             | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/divide_and_conquer/karatsuba_algorithm_for_fast_multiplication.cpp b/divide_and_conquer/karatsuba_algorithm_for_fast_multiplication.cpp
index 3fa5c0c76..31ac8d84c 100644
--- a/divide_and_conquer/karatsuba_algorithm_for_fast_multiplication.cpp
+++ b/divide_and_conquer/karatsuba_algorithm_for_fast_multiplication.cpp
@@ -59,7 +59,7 @@ std::string addStrings( std::string first, std::string second )
         int64_t secondBit = second.at(i) - '0';
  
         int64_t sum = (firstBit ^ secondBit ^ carry)+'0'; // sum of 3 bits
-        sum = to_string(sum);
+        sum = std::to_string(sum);
         sum += result;
         result = sum;