関数の最小と最大を求める

// Online C compiler to run C program online
#include <stdio.h>


#define FUNC(x) 3*pow(x,5)-5*pow(x,4)+14*pow(x,2)-6*pow(x,1)+50

struct{
    float max;
    float min;
    float val;
} v;

int main() {
    v.max = v.min = v.val = FUNC(0);
    for(float i = 0.0; i < 2.0; i += 0.1){
        v.val = FUNC(i);
        if(v.val > v.max) v.max = v.val;
        if(v.val < v.min) v.min = v.val;
        printf("value:%f\r\n",v.val);
    }
    printf("value:%f\tmax:%f\tmin:%f\r\n",v.val,v.max,v.min);
}