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The peer has ICPC contest experience with medals in high school, a senior in the university, and then I asked his solution of array quadruplet since I tutored the peer the algorithm for a brute force solution early in the morning. He wrote the pseudo code first, and I did not understand his code. So I asked him to explain the algorithm with the example. He gave me some explanation with an example.

The peer has ICPC contest experience with medals in high school, a senior in the university, and then I asked his solution of array quadruplet since I tutored the peer the algorithm for a brute force solution early in the morning, I like to learn from others on this algorithm as well. He wrote the pseudo code first, and I did not understand his code. So I asked him to explain the algorithm with the example. He gave me some explanation with an example.

I have worked on the algorithm over 20 times, but I could not come out better idea for my own question here last 5 months. But on April 28, 2018 I had five mock interviews a day. At 12:00 AM, I had chance to interview a peer using array quadruplet again. I found out that the peer had hard time to write a brute force solution. Later in the day my fifth interview, starting from 10:00 PM, the peer finished his algorithm in less than 9 minutes, I finished my algorithm in less than 20 minutes. So I asked the peer a few questions to test his strength on algorithm. The peer has ICPC contest experience with medals in high school, a senior in the university, and then I asked his solution of array quadruplet. He wrote the pseudo code first, and I did not understand his code. So I asked him to explain the algorithm with the example. He gave me some explanation with an example.

I have worked on the algorithm over 20 times, but I could not come out better idea for my own question here last 5 months. But on April 28, 2018 I had five mock interviews a day. At 12:00 AM, I had chance to interview a peer using array quadruplet again. I found out that the peer had hard time to write a brute force solution. Later in the day my fifth interview, starting from 10:00 PM, the peer finished his algorithm in less than 9 minutes, I finished my algorithm in less than 20 minutes. So I asked the peer a few questions to test his strength on algorithm. 

The peer has ICPC contest experience with medals in high school, a senior in the university, and then I asked his solution of array quadruplet since I tutored the peer the algorithm for a brute force solution early in the morning. He wrote the pseudo code first, and I did not understand his code. So I asked him to explain the algorithm with the example. He gave me some explanation with an example.

I continued to learn the algorithm array quardruplet through mock interview practice. I had practiced over 10 rounds of mock interview last 12 months, so every round I had to work on the algorithm at least two times.

I have worked on the algorithm over 20 times. So on April 28, 2018 I had five mock interviews a day. At 12:00 AM, I had chance to interview a peer using array quadruplet again. I found out that the peer had hard time to write a brute force solution. Later in the day my fifth interview, starting from 10:00 PM, the peer finished his algorithm in less than 9 minutes, I finished my algorithm in less than 20 minutes. So I asked the peer a few questions to test his strength on algorithm. The peer has ICPC contest experience with medals in high school, a senior in the university, and then I asked his solution of array quadruplet. He wrote the pseudo code first, and I did not understand his code. So I asked him to explain the algorithm with the example. He gave me some explanation with an example.

I continued to learn the algorithm array quardruplet through mock interview practice. I had practiced over 10 rounds of mock interview last 12 months, and every round I had to work on the algorithm at least two times.

I have worked on the algorithm over 20 times, but I could not come out better idea for my own question here last 5 months. But on April 28, 2018 I had five mock interviews a day. At 12:00 AM, I had chance to interview a peer using array quadruplet again. I found out that the peer had hard time to write a brute force solution. Later in the day my fifth interview, starting from 10:00 PM, the peer finished his algorithm in less than 9 minutes, I finished my algorithm in less than 20 minutes. So I asked the peer a few questions to test his strength on algorithm. The peer has ICPC contest experience with medals in high school, a senior in the university, and then I asked his solution of array quadruplet. He wrote the pseudo code first, and I did not understand his code. So I asked him to explain the algorithm with the example. He gave me some explanation with an example.