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 | struct structure_student {
	char name[50];
	int size;
	bool sex; //sex=0 it's a boy -- sex=1 it's a girl
};
 
//****** function exchangeStudent *****
//* use to exchange the position of 2 students in a table of structure_student
void exchangeStudent(structure_student* studentS, int a, int b)
{
	structure_student temp;
//put the data of the student a into the temp
	strcpy(temp.name, studentS[a].name);
	temp.size=studentS[a].size;
	temp.sex=studentS[a].sex;
//put the data of the student b into the data of the student b
	strcpy(studentS[a].name, studentS[b].name);
	studentS[a].size=studentS[b].size;
	studentS[a].sex=studentS[b].sex;
//put the data of the temp into the data of the student b
	strcpy(studentS[b].name, temp.name);
	studentS[b].size=temp.size;
	studentS[b].sex=temp.sex;
} | 
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