Finding the largest number in each column in an array - c++

Question

Hi guys I wan to build a program with external variable but I have difficulties in displaying the number out when the program is debug.My program is to display the largest number in each column when the time is selected for each column.For example selected 1.00 and the largest number is 98.
First Source File
#include<stdio.h>
void main(void)
{
extern int transitTime[];
extern float time[];
int i;
int number,largest;
printf("Please enter the time leaving TP.\n");
scanf("%d",&number);
largest=time[number-1];
for(i=number-1;i<11*4;i+11)
{
if(number>largest)largest=number;
}
printf("Largest=%d\n",largest);
}
Second Source File
int transitTime[] =
{
88, 67, 90, 12, 34, 65, 100, 78, 56, 77, 85, //bus 8
98, 34, 67, 98, 67, 45, 67, 23, 45, 67, 89, //bus15
88, 67, 90, 12, 34, 65, 100, 78, 56, 77, 85, //22
98, 34, 67, 98, 67, 45, 67, 23, 45, 67, 89, //23
};
float time[]=
{
1.00,1.30,2.00,2.30,3.00,3.30,4.00,4.30,5.00,5.30,6.00
};
Thanks

Answer 1

First method: Loop with the no of elements in the row.
#include <algorithm>
#include <vector>
scanf("%d",&number)
int *it = std::find(time,time+11,number);
largest = *it;
for(int *i=it;i<11*4;i = i+11)
{
if(*i >largest)largest=*i;
}