# include & lttime.h & gt
# include & ltstdlib.h & gt
# include & ltmath.h & gt
#定義?n?2
#定義?m?三
作廢?main()?{?浮動?a[N][M];?int?I,j,k;
srand((未簽名?int)time(NULL));
為了什麽?(?I = 0;我& ltn;i++?)?為了什麽?(?j = 0;j & ltm;j++?)?a[I][j]= rand()% 200-100;
為了什麽?(?I = 0;我& ltn;i++?)?{
為了什麽?(?j=1,k = 0;j & ltm;j++?)?如果?(?fabs(a[I][j])& gt;fabs(a[i][k])?)?k = j;
為了什麽?(?j = 0;j & ltm;j++?)?a[I][j]/= a[I][k];
}
為了什麽?(?I = 0;我& ltn;i++?)?{
為了什麽?(?j = 0;j & ltm;j++?)?printf("%10f?",a[I][j]);?
printf("\n ")
}
}