int main(){
int n,i,cha,flag = 0;
float xishu[MAX],tail,a,b,x,e,y,left,right,mid;
printf("几次方程？");
scanf("%d",&n);
printf("输入各个系数和常数(按次数从大到小): ");
for(i=0;i<n;i++)
scanf("%f",&xishu[i]);
scanf("%f",&tail);
printf("请输入允许的误差范围 ");
scanf("%f",&e);
printf("请给出两个值的范围 ");
scanf("%f %f",&a,&b);
while(zhi(n,xishu,tail,a)*zhi(n,xishu,tail,b)>=0){
printf("请选择另处的求值范围");
scanf("%f %f",&a,&b);
}
while(fabs(a-b)>e){
x = (a+b)/2;
mid = zhi(n,xishu,tail,x);
left = zhi(n,xishu,tail,a);
right = zhi(n,xishu,tail,b);
if (fabs(mid)<e){
y = x;
flag = 1;
break;
}
if (left*mid<0)
b = x;
else if(mid*right<0)
a = x;
}
if (flag == 0)
y = (a+b)/2;
printf("值是: %f\n",y);
return 0;
}
int main(){
gets(s);
int max=0,min=0x7fffffff;
for (char *c=s;*c;c++){
if (isupper(*c)) *c=*c-'A'+'a';
ctot[*c-'a']++;
}
for (int i=0;i<26;++i){
if (ctot[i]){
if (ctot[i]>max) max=ctot[i];
if (ctot[i]<min) min=ctot[i];
}
}
if (zhi(max-min)){
printf("Lucky Word\n%d\n",max-min);
}else {
printf("No Answer\n0\n");
}
return 0;
}
