#include <stdio.h>
int main()
{
int i = 0, j = 0, n = 0;
while (scanf("%d", &n) != EOF)
{
for (i = 1; i < n + 1; i++)//控制行数
{
for (j = 1; j <=i; j++)
{
printf("%d ",j );//打印每一行
}
printf("\n");
}
}
return 0;
}

#include <stdio.h>
int main()
{
int i = 0, j = 0, n = 0;
while (scanf("%d", &n) != EOF)
{
for (i = 1; i < n + 1; i++)//控制行数
{
for (j = 1; j <=i; j++)
{
printf("%d ",j );//打印每一行
}
printf("\n");
}
}
return 0;
}