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Update exponential_search.cpp

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Divide-et-impera-11
2019-11-30 21:13:17 +01:00
committed by GitHub
parent 36a3999f3e
commit 38fb290b88
1 changed files with 16 additions and 16 deletions
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32
Search/exponential_search.cpp
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@@ -1,17 +1,17 @@
// Copyright 2020 Divide-et-impera-11
#include <assert.h>
#include <iostream>
#include <string>
#include <assert.h>
using namespaces std;
template<class Type> inline Type* binary_s(Type *array, size_t size, Type key) {
int32_t lower_index(0), upper_index(size - 1), middle_index;
while (lower_index <= upper_index) {
middle_index = floor((lower_index + upper_index) / 2);
if (*(array + middle_index) < key) lower_index = (middle_index + 1);
else if (*(array + middle_index) > key)upper_index = (middle_index - 1);
else return (array + middle_index);
}
return nullptr;
int32_t lower_index(0), upper_index(size - 1), middle_index;
while (lower_index <= upper_index) {
middle_index = floor((lower_index + upper_index) / 2);
if (*(array + middle_index) < key) lower_index = (middle_index + 1);
else if (*(array + middle_index) > key)upper_index = (middle_index - 1);
else return (array + middle_index);
}
return nullptr;
}
template<class Type> Type* Struzik_Search(Type* array, size_t size, Type key) {
uint32_t block_front(0), block_size = size == 0 ? 0 : 1;
@@ -23,13 +23,13 @@ template<class Type> Type* Struzik_Search(Type* array, size_t size, Type key) {
}
return binary_s<Type>(array + block_front, (block_size - block_front), key);
}
return nullptr;
return nullptr;
}
int main() {
int *sorted_array = new int[7]{7, 10, 15, 23, 70, 105, 203};
assert(Struzik_Search<int>(sorted_array, 7, 0) == nullptr);
assert(Struzik_Search<int>(sorted_array, 7, 1000) == nullptr);
assert(Struzik_Search<int>(sorted_array, 7, 50) == nullptr);
assert(Struzik_Search<int>(sorted_array, 7, 7) == sorted_array);
return EXIT_SUCCESS;
int *sorted_array = new int[7]{7, 10, 15, 23, 70, 105, 203};
assert(Struzik_Search<int>(sorted_array, 7, 0) == nullptr);
assert(Struzik_Search<int>(sorted_array, 7, 1000) == nullptr);
assert(Struzik_Search<int>(sorted_array, 7, 50) == nullptr);
assert(Struzik_Search<int>(sorted_array, 7, 7) == sorted_array);
return EXIT_SUCCESS;
}