# Answer to Question #17449 in C++ for Bishoy fam

Question #17449

Mohammad has recently visited Switzerland. As he loves his friends very much, he decided to buy

some chocolate for them, but as this fine chocolate is very expensive(You know Mohammad is a little

BIT stingy!), he could only afford buying one chocolate, albeit a very big one (part of it can be seen in

figure 1) for all of them as a souvenir. Now, he wants to give each of his friends exactly one part of

this chocolate and as he believes all human beings are equal (!), he wants to split it into equal parts.

The chocolate is an M x N rectangle constructed from M x N unit-sized squares. You can assume that

Mohammad has also M x N friends waiting to receive their piece of chocolate.

To split the chocolate, Mohammad can cut it in vertical or horizontal direction (through the lines that

separate the squares). Then, he should do the same with each part separately until he reaches M x N

unit size pieces of chocolate. Unfortunately, because he is a little lazy, he wants to use the minimum

number of cuts required to accomplish this task.

Your goal is to tell him the minimum number of cuts needed to split all of the chocolate squares apart.

Figure 1. Mohammad’s chocolate

The input consists of several test cases. In each line of input, there are two integers 1 <= M <= 300,

the number of rows in the chocolate and 1 <= N <= 300, the number of columns in the chocolate. The

input should be processed until end of file is encountered.

For each line of input, your program should produce one line of output containing an integer

indicating the minimum number of cuts needed to split the entire chocolate into unit size pieces.

some chocolate for them, but as this fine chocolate is very expensive(You know Mohammad is a little

BIT stingy!), he could only afford buying one chocolate, albeit a very big one (part of it can be seen in

figure 1) for all of them as a souvenir. Now, he wants to give each of his friends exactly one part of

this chocolate and as he believes all human beings are equal (!), he wants to split it into equal parts.

The chocolate is an M x N rectangle constructed from M x N unit-sized squares. You can assume that

Mohammad has also M x N friends waiting to receive their piece of chocolate.

To split the chocolate, Mohammad can cut it in vertical or horizontal direction (through the lines that

separate the squares). Then, he should do the same with each part separately until he reaches M x N

unit size pieces of chocolate. Unfortunately, because he is a little lazy, he wants to use the minimum

number of cuts required to accomplish this task.

Your goal is to tell him the minimum number of cuts needed to split all of the chocolate squares apart.

Figure 1. Mohammad’s chocolate

The input consists of several test cases. In each line of input, there are two integers 1 <= M <= 300,

the number of rows in the chocolate and 1 <= N <= 300, the number of columns in the chocolate. The

input should be processed until end of file is encountered.

For each line of input, your program should produce one line of output containing an integer

indicating the minimum number of cuts needed to split the entire chocolate into unit size pieces.

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