C语言寻找一组数据中的第一第二峰值

#include <stdio.h>
#define Threshold -10            //设置阈值
int main(int argc, char** argv)
{
    float a[3000];
    float peak1,peak2,peak2_1,peak2_2,min=a[0];
    int i,p1,p2,p2_1,p2_2,t1,t2,life;
    FILE *fp=NULL;
    FILE *fpp=NULL;
    fp=fopen("F:\\data\\data100000.txt","r");
    for(i=0; i<2500; i++)
    {
        fscanf(fp,"%f",&a[i]);
        //printf("%d-%f\n",i,a[i]);
    }
    for(i=0; i<2500; i++)
    {
        if(a[i]<min)
        {
            min=a[i];
            peak1=a[i];
            p1=i;
            printf("min=%f,p1=%d\n",peak1,p1);
        }
    }//找最大的峰值

    for(i=p1; i>0; i--)         //以第一个极值为基准，将数据分为两部分处理
    {
        if(a[i]>Threshold)
        {
            t1=i;
            break;
        }
    }
    for(i=p1; i<2500; i++)
    {
        if(a[i]>Threshold)
        {
            t2=i;
            break;
        }
    }

    min=0;
    for(i=0; i<t1; i++)
    {
        if(a[i]<min)
        {
            min=a[i];
            peak2_1=a[i];
            p2_1=i;
            printf("min=%f,p2_1=%d\n",peak2_1,p2_1);
        }
    }
    min=0;
    for(i=t2; i<2500; i++)
    {
        if(a[i]<min)
        {
            min=a[i];
            peak2_2=a[i];
            p2_2=i;
            printf("min=%f,p2_2=%d\n",peak2_1,p2_1);
        }
    }

    if(peak2_1<peak2_2)                             //分别处理的两部分结果比较，取最值
    {
        peak2=peak2_1;
        p2=p2_1;
    }
    else
    {
        peak2=peak2_2;
        p2=p2_2;
    }

    printf("%f %d\n",peak1,p1+1);
    printf("%f %d\n",peak2,p2+1);
    fclose(fp);
    return 0;
}