HDU 5170

题目链接：点击打开链接

#include <iostream>#include <stdio.h>#include <string.h>#include <algorithm>#include <math.h>using namespace std;#define eps 1e-6int main(){    int a,b,c,d;    double A,B;    while(~scanf("%d%d%d%d",&a,&b,&c,&d)){        A = b*log(a);        B = d*log(c);        if(fabs(A-B)<eps){            printf("=\n");        }        else if(A>B) printf(">\n");        else printf("<\n");    }    return 0;}