WenhaoCui_6153876930_HW1_Q3
1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980
#include <iostream>
#include <cstdlib>
#include <ctime>
#include <cmath>
using namespace std;
void printStars(int n) {
for(int i=0;i < n;i++) {
cout << "*";
}
cout << endl;
}/// printStars()
void pareto(int N, double a){
srand(5);
double largestVal = -10000000, smallestVal = 10000000;
double arr[10]={0,0,0,0,0,0,0,0,0,0};
for(int i=0;i<N;i++){
double r = ((double)rand())/RAND_MAX;
double value = 1/(pow(r,1/a));
if (value > largestVal){
largestVal = value;
}
if(value < smallestVal){
smallestVal = value;
}
}
for(int i=0;i<N;i++){
double r = ((double)rand())/RAND_MAX;
double p = 1/(pow(r,1/a));
double pNorm = (p - smallestVal)/(largestVal - smallestVal);
int n = floor(pNorm*10);
switch (n){
case 0:
arr[0]++;
break;
case 1:
arr[1]++;
break;
case 2:
arr[2]++;
break;
case 3:
arr[3]++;
break;
case 4:
arr[4]++;
break;
case 5:
arr[5]++;
break;
case 6:
arr[6]++;
break;
case 7:
arr[7]++;
break;
case 8:
arr[8]++;
break;
case 9:
arr[9]++;
break;
default:
arr[9]++;
break;
}
}
for(int i=0; i<10; i++){
int nAsterisks = floor(100 * arr[i]/N);
printStars(nAsterisks);
}
}
int main() {
pareto(300, 1.24);
return 0;
}
Cpp
INFO