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update prob 1

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Signed-off-by: Krishna Vedala <7001608+kvedala@users.noreply.github.com>
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Krishna Vedala 2020-10-29 14:27:14 -04:00
parent d0292af418
commit 86676ac210
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leetcode/problem_1/sol1.c
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@ -1,3 +1,25 @@
/**
* \file
* \brief [1. Twos Sum](https://leetcode.com/problems/two-sum/) solution
* \details
* Given an array of integers `nums` and an integer `target`, return **indices
* of the two numbers such that they add up to `target`**.
*/
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
/**
* @brief Solution implementation
*
* @param [in] nums array of integers
* @param [in] numsSize number of integers in the array
* @param [in] target target integer
* @param [out] returnSize size of output array (always = 2)
* @return int* array
* @note the output array must be **freed** by the calling function.
*/
int *twoSum(int *nums, int numsSize, int target, int *returnSize)
{
int i, j;
@ -15,3 +37,33 @@ int *twoSum(int *nums, int numsSize, int target, int *returnSize)
*returnSize = 2;
return ret;
}
/** Main function
* @returns 0
*/
int main()
{
int in1[] = {2, 7, 11, 15};
int target1 = 9;
int tmp;
int *test1 = twoSum(in1, 4, target1, &tmp);
assert(in1[test1[0]] + in1[test1[1]] == target1);
printf("Test 1 passed.\n");
free(test1);
int in2[] = {3, 2, 4};
int target2 = 6;
int *test2 = twoSum(in2, 3, target2, &tmp);
assert(in2[test2[0]] + in2[test2[1]] == target2);
printf("Test 2 passed.\n");
free(test2);
int in3[] = {3, 3};
int target3 = 6;
int *test3 = twoSum(in3, 2, target3, &tmp);
assert(in3[test3[0]] + in3[test3[1]] == target3);
printf("Test 3 passed.\n");
free(test3);
return 0;
}