From 4aaa8c26890664e87091ca51fbc49f2c558149c4 Mon Sep 17 00:00:00 2001
From: Olivia Appleton <olivia.kay.appleton@gmail.com>
Date: Wed, 7 Aug 2024 18:12:53 -0500
Subject: [PATCH] Solve security warnings in C++

---
 cplusplus/src/p0020.cpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/cplusplus/src/p0020.cpp b/cplusplus/src/p0020.cpp
index ae86939c..d93ea1af 100644
--- a/cplusplus/src/p0020.cpp
+++ b/cplusplus/src/p0020.cpp
@@ -21,10 +21,10 @@ unsigned long long p0020() {
     const unsigned long long ten17 = 100000000000000000;
     numbers[0] = 1;
     for (unsigned char i = 2; i <= 100; i++) {
-        for (unsigned char j = 0; j < numbers.size(); j++) {
+        for (size_t j = 0; j < numbers.size(); j++) {
             numbers[j] *= i;
         }
-        for (unsigned char j = 0; j < numbers.size() - 1; j++) {
+        for (size_t j = 0; j < numbers.size() - 1; j++) {
             if (numbers[j] > ten17) {
                 numbers[j + 1] += numbers[j] / ten17;
                 numbers[j] %= ten17;
@@ -34,7 +34,7 @@ unsigned long long p0020() {
     unsigned long long answer = 0;
     unsigned long long power = 1;
     for (unsigned char i = 0; i < 18; i++) {
-        for (unsigned char j = 0; j < numbers.size(); j++) {
+        for (size_t j = 0; j < numbers.size(); j++) {
             answer += (numbers[j] / power) % 10;
         }
         power *= 10;