Question

第一个源文件

#include<stdio.h>
void main(void)
{
    extern int transitTime[];
    int time1;
    int i,j;
    int largest;
    printf("Please enter time leaving school.\n");
    scanf("%d",&time1);
    for(i=0;i<time1;i++)
    {
    largest=0;
    printf("The longest travelling time ");

    for(j=0;j<4;j++)
    {
    //printf("%d ",transitTime[i+j*11]);
    if(transitTime[i+j*11]>largest)largest=transitTime[i+j*11];
    }

    printf("is %d\n",largest);
    }
}

第二个源文件

int transitTime[] ={
 56,58,57,52,54,53,48,49,51,57,62, //bus 8
 39,43,40,34,37,36,31,32,42,49,59, //bus15
 42,47,43,42,51,49,40,41,48,50,58, //22
 50,55,51,49,52,47,49,48,53,41,55, //23
 };

调试程序后的输出是

Please enter the time leaving school
5
The longest time is 56
The longest time is 58
The longest time is 57
The longest time is 52
The longest time is 54

如何让程序选择我想要的行：

Please enter the time leaving school
5
The longest time is 54

提前致谢!!

Answer 1

以这种方式更改您的代码

void main(void)
{
    extern int transitTime[];
    int time1;
    int i,j;
    int largest;
    printf("Please enter time leaving school.\n");
    scanf("%d",&time1);
//    for(i=0;i<time1;i++)
//    {
    i = time1 - 1;
    largest=0;
    printf("The longest travelling time ");

    for(j=0;j<4;j++)
    {
    //printf("%d ",transitTime[i+j*11]);
    if(transitTime[i+j*11]>largest)
                largest=transitTime[i+j*11];
    }

    printf("is %d\n",largest);
 //   }
}

不需要使用i变量进行循环。

只需选择i的值time1 -1

即可

查找数组中列中的最大数字

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