Explain why a compiler might make the following optimization to a C program. You must

be very specific, otherwise you will get ZERO credit.

Before Optimization:

for $($j$=0$; j $<20$; j$++)$

for $($i$=0$; i $<200$; i$++)$

x$[$I$][$j$]=$x$[$I$][$j$]+1$;

After Optimization:

for $($j$=0$; j $<200$; i$++)$

for $($j$=0$; j $<20$; j$++)$

x$[$I$][$j$]=$x$[$I$][$j$]+1$;