21. Describe the running time of the code shown below: Static int foo(int num){ int bar = 0; for(int i =0; i 2){ Sum++; j=

21. Describe the running time of the code shown below:

Static int foo(int num){

int bar = 0;

for(int i =0; i

bar=bar+(i*num);

}

return bar;

}

22. Describe the running time of the code shown below:

Static void foobar(int num, int sum){

int j= num;

while (j>2){

Sum++;

j= j/2;

}

}

}

23. Describe the running time of the code shown below:

for(int j =4;j

int bar =0;

for(int i=0;i

bar = bar+i*j;

for(int k=0;k

bar++;

}

}

}