for (int i = 0; i < (int)vector.size(); i++) {
In old code, you should have used size_t i, then there's no need for the cast. Avoid casting if at all possible.
size_t i
for (auto [key, value] : map) {
It depends on the types of key and value because those are copied by value. For large-ish types, you probably want to do:
key
value
for (auto const &[key, value] : map ) {
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In old code, you should have used
size_t i, then there's no need for the cast. Avoid casting if at all possible.It depends on the types of
keyandvaluebecause those are copied by value. For large-ish types, you probably want to do: