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| 1 | - | bool cmp(const string lhs, const string rhs) {
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| 1 | + | bool cmp(const string& lhs, const string& rhs) {
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| 2 | string l = lhs; | |
| 3 | string r = rhs; | |
| 4 | int l_size = l.size(); | |
| 5 | int r_size = r.size(); | |
| 6 | ||
| 7 | if (l_size < r_size) {
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| 8 | r.resize(l_size); | |
| 9 | } else if (r_size < l_size) {
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| 10 | l.resize(r_size); | |
| 11 | } | |
| 12 | ||
| 13 | return l < r; | |
| 14 | } | |
| 15 | ||
| 16 | template <typename RandomIt> | |
| 17 | pair<RandomIt, RandomIt> FindStartsWith( | |
| 18 | RandomIt range_begin, RandomIt range_end, | |
| 19 | const string prefix) {
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| 20 | ||
| 21 | auto r = equal_range(range_begin, range_end, prefix, cmp); | |
| 22 | ||
| 23 | return r; | |
| 24 | } |
