我正在研究一项计划,该计划将用于对学生的考试成绩进行排序,并最终检索分数的均值,中位数和模式。由于一些奇怪的原因,我的泡泡排序不起作用..我不确定为什么。
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define N 3
int main (void)
{
char vStudents[N][15], trans = 'y', vTemp2;
int vScores[N], vTemp, x, i = 0, j=0, NewN;
printf("\t\tWhatsamatta U Scores System\n\n");
do
{
printf("Please Enter Students Name: ");
gets(vStudents[i]);
trans = 'N';
while (trans == 'N')
{
printf("Enter Students Score: ");
scanf("%d", &vScores[i]);
fflush(stdin);
if (vScores[i] >= 0 & vScores[i] <= 100)
trans = 'y';
else
printf("Score is invalid, please re-enter score.\n");
}
i++;
j++;
} while (j != N);
for(x = 0; x < N - 1; x++)
{
if ((x < N - 1) && (vScores[i] > vScores[i + 1]))
{
vTemp = vScores[i];
vScores[i] = vScores[i + 1];
vScores[i + 1] = vTemp;
x = -1;
}
}
printf("%d %d %d\n\n", vScores[0], vScores[1], vScores[2]);
system("Pause");
return 0;
任何帮助都会有用,提前谢谢!
答案 0 :(得分:4)
至少有一个错误:
for(x = 0; x < vScores[N] - 1; x++)
{
if ((x < vScores[N] - 1) && (vScores[N] > vScores[N + 1]))
{
应该是
for(x = 0; x <N - 1; x++)
{
if ((x < N - 1) && (vScores[N] > vScores[N + 1]))
{
//^^you should not compare index x with array elements
答案 1 :(得分:1)
N总是3.如果我们用3替换代码中的N,它仍然有意义吗?
for(x = 0; x < vScores[3] - 1; x++)
{
if ((x < vScores[3] - 1) && (vScores[3] > vScores[3 + 1]))
{
vTemp = vScores[3];
vScores[3] = vScores[3 + 1];
vScores[3 + 1] = vTemp;
x = -1;
}
}
好的,现在就是这样:
for(x = 0; x < N - 1; x++)
{
if ((x < N - 1) && (vScores[i] > vScores[i + 1]))
{
vTemp = vScores[i];
vScores[i] = vScores[i + 1];
vScores[i + 1] = vTemp;
x = -1;
}
}
问,i
何时更改?