Fix linter messages

src/ChronospatialComputer.cpp

@@ -134,7 +134,7 @@ int64_t ChronospatialComputer::findQuineState()
     // number (from 'program_'). The target output numbers are considered in reverse order.
     while (i > 0)
     {
-        auto patterns = outputPatterns[program_[i - 1]];
+        auto& patterns = outputPatterns[program_[i - 1]];
         auto it = std::find_if(patterns.begin(), patterns.end(),
             [&lastAppend, &result, &masks](auto& x) {
                 return lastAppend < x.first && (result & masks[x.first]) == x.second; });

src/ClawContraption.cpp

@@ -94,7 +94,7 @@ int64_t ClawContraption::calcTokenCost(const Point2& buttonA, const Point2& butt
     const int64_t offset)
 {
     int64_t p{ (prize.y + offset) * buttonB.x - (prize.x + offset) * buttonB.y };
-    int64_t q{ buttonA.y * buttonB.x - buttonA.x * buttonB.y };
+    int64_t q{ static_cast<int64_t>(buttonA.y) * buttonB.x - static_cast<int64_t>(buttonA.x) * buttonB.y };
     int64_t a{ p / q };
     if (a * q != p || (offset == 0 && a > getNMaxButtonPushes()))
     {

src/DiskFragmenter.cpp

@@ -110,7 +110,7 @@ void DiskFragmenter::moveWholeFiles(const std::string& line)
 
     // Contains indices of the next empty space with at least as many blocks as their index. 'emptySpaceIndices[0]' is
     // not used, but included for convenience of accessing the other values by index.
-    DigitIndexArray emptySpaceIndices;
+    DigitIndexArray emptySpaceIndices{};
     emptySpaceIndices.fill(0);
 
     while (back > 0)
@@ -121,7 +121,7 @@ void DiskFragmenter::moveWholeFiles(const std::string& line)
         {
             if (front >= back)
             {
-                position -= getDigit(line, back) + getDigit(line, back - 1);
+                position -= getDigit(line, back) + static_cast<size_t>(getDigit(line, back - 1));
             }
             moveBackFileForward(back, backIdNumber, nBackBlocks, emptySpaces[emptySpaceIndices[nBackBlocks]]);
             UpdateEmptySpaceIndices(emptySpaces, emptySpaceIndices);