label stringlengths 1 2 | index stringlengths 1 5 | code stringlengths 87 8.24k |
|---|---|---|
38 | 18900 | double fangcha(double * p,int n)
{
double * q;
double aver=0,sum=0,pfhe=0;
int i;
for(q=p,i=0;i<n;i++,q++)
sum=sum+(*q);
aver=sum/n;
for(q=p,i=0;i<n;i++,q++)
{
pfhe=pfhe+pow(aver-(*q),2);
}
return sqrt(pfhe/n);
}
int main()
{
int k;
scanf("%d",&k);
while(k--)
{
int n;
scanf("%d\n",&n);
double x[1... |
38 | 18901 | int main()
{
int k, n, i, j;
double a[100] = {0};
double *p;
double jun = 0, s = 0;
cin >> k;
for(j = 1; j <= k; j++)
{
cin >> n;
p = a;
for(i = 0; i < n; i++)
{
cin >> *(p + i);
}
for(i = 0; i < n; i++)
{
jun = jun + *(p + i);
}
jun = jun / n;
for(i = 0; i < n; i++)
{
s = s + (*(... |
38 | 18902 | int main()
{
int k,n,i,j;
double a[100],sum=0,ave,m,w,g,s;
scanf("%d",&n);
for(i=0;i<n;i++)
{ sum=0;
scanf("%d\n",&k);
for(j=0;j<k;j++)
{
scanf("%lf",&a[j]);
sum+=a[j];
}
ave=sum/k;
w=0;
for(j=0;j<k;j++)
{
m=pow((a[j]-ave),2);
... |
38 | 18903 | int main()
{
double a[100];
double *p;
p=a;
int n,k;
cin>>n;
double sum1=0;
double s;
double sum2=0;
for (int i=1;i<=n;i++)
{
sum1=0;
sum2=0;
s=0;
cin>>k;
for (int j=0;j<k;j++)
{
cin>>p[j];
sum1+=p[j];
}
sum1=sum1/k;
for (int l=0;l<k;l++)
{
sum2+=(p[l]-sum1)*(p[l]-sum1);
}
... |
38 | 18904 |
int main()
{
int n,k;
float x[100];
double a,s,y;
int i,j;
scanf("%d",&k);
for (i=1;i<=k;i++)
{
scanf("%d",&n);
for (j=1;j<=n;j++)
scanf("%f",&x[j]);
a=0;
y=0;
for (j=1;j<=n;j++)
a=a+x[j];
a=a/n;
for (j=1;j<=n;j++)
y=y+(x[j]-a)*(x[j]-a);
s=sqrt(y/n);
printf("%.5lf\n",s);
}
return 0;... |
38 | 18905 | int isrunnian(int year);
int main()
{
int n,m,i,j;
double b[1000],sum=0.0,s=0.0,a=0.0,s2=0.0;
scanf("%d",&n);
for(i=0;i<n;i++)
{
sum=0;
s2=0;
scanf("%d",&m);
for(j=0;j<m;j++)
{
scanf("%lf",&b[j]);
}
for(j=0;j<m;j++)
{
sum+=b[j];
}
a=(double)sum/m;
for(j=0;j<m;j++)
{
s2+=(b[j]-a)*(b... |
38 | 18906 | int main()
{
int k,i,j,n;
double A[100],sum1,sum2,S[100],a;
scanf("%d",&k);
for(i=0;i<k;i++)
{
scanf("%d",&n);
for(j=0;j<n;j++)
{
scanf("%lf",&A[j]);
}
for(j=0,sum1=0;j<n;j++)
{
sum1+=A[j];
}
a = sum1/n;
for(j=0,sum2=0;j<n;j++)
{
sum2+=(A[j]-a)*(A[j]-a);
}
S[i]=sqrt(sum2/n);
}
fo... |
38 | 18907 | int main(){
int k,n[100],i,j,m;
double x[100][100],ave[100]={0.0},sum[100]={0.0},s[100]={0.0};
scanf("%d",&k);
for(i=0;i<k;i++)
{
scanf("%d",&n[i]);
for(j=0;j<n[i];j++)
{
scanf("%lf",&x[i][j]);
ave[i]+=x[i][j];
}
ave[i]=ave[i]/n[i];
for(m=0;m<n[i];m++)
{
sum[i]+=(x[i][m]-ave[i])*(x[i][m]-ave... |
38 | 18908 | double Variance(double [],int);
int main()
{
int n,i,j,m;
cin>>n;
for(i=0;i<n;i++)
{
cin>>m;
double X[105];;
for(j=0;j<m;j++)
cin>>X[j];
cout<<fixed<<setprecision(5);
cout<<Variance(X,m)<<endl;
}
return 0;
}
double Variance(double X[105], int n)
{
int i;
double sum=0,V=0;
for(i=0;i<n;i++)
sum+... |
38 | 18909 | int main()
{
int k,n,i,j;
double x[1000],s[1000];
scanf("%d",&k);
for(j=1;j<=k;j++)
{
double b=0,a,p=0;
scanf("%d",&n);
for(i=0;i<n;i++)
{
scanf("%lf",&x[i]);
}
for(i=0;i<n;i++)
{
b+=x[i];
}
a=(double)b/n;
for(i=0;i<n;i++)
{
p+=(double)pow((x[i]-a),2);
}
s[j]=(double)sqrt(p/n);
... |
38 | 18910 | int main()
{
int k, n[100], i, j;
double x[100][100];
double a[100]={0}, s[100]={0}, S[100]={0};
scanf("%d", &k);
for(i=0;i<k;i++){
scanf("%d",&n[i]);
for(j=0;j<n[i];j++){
scanf("%lf", &x[i][j]);
}
}
for(i=0;i<k;i++){
for(j=0;j<n[i];j++){
a[i]+=x[i][j]/n[i];
}
}
for(i=0;i<k;... |
38 | 18911 | int main()
{
int k,i,n,j,p;
double x[1000],a,b,s,S;
scanf("%d",&k);
for(i=0;i<k;i++)
{ a=0;
s=0;
S=0;
scanf("%d",&n);
for(j=0;j<n;j++)
{
scanf("%lf",&x[j]);
a=a+x[j];
... |
38 | 18912 | int main()
{
int k,n,i,j;
double x[100],a,s;
scanf("%d",&k);
for (j=0;j<k;j++)
{
scanf("%d",&n);
a=0;s=0;
for (i=0;i<n;i++) scanf("%lf",&x[i]);
for (i=0;i<n;i++) a+=x[i];
a=a/n;
for (i=0;i<n;i++) s+=(x[i]-a)*(x[i]-a);
s=sqrt(s/n);
printf("%.5f\n",s);
}
return 0;
} |
38 | 18913 | int main()
{
int k,n,i,j;
double s[100],a[100]={0.0},sum=0.0;
scanf("%d",&k);
for(i=0;i<k;i++)
{
sum=0.0;
scanf("%d",&n);
for(j=0;j<n;j++)
{
scanf("%lf",&s[j]);
sum+=s[j];
}
sum=sum/(1.0*n);
for(j=0;j<n;j++)
{
a[i]+=(1.0*s[j]-sum)*(1.0*s[j]-sum);
}
a[i]=sqrt(a[i]/(1.0*n));
}
for(i=0;... |
38 | 18914 | void main()
{
int i,j,n,m;
scanf("%d",&m);
for(i=0;i<m;i++)
{
scanf("%d",&n);
double *a=(double *)malloc(n*sizeof(double)),E=0,D=0;
for(j=0;j<n;E+=*(a+j-1))
scanf("%lf",a+j++);
E/=n;
for(j=0;j<n;j++)
D+=(*(a+j)-E)*(*(a+j)-E);
D/=n;
printf("%.5lf\n",sqrt(D));
}
} |
38 | 18915 | int main(int argc, char* argv[])
{int k,n,i,j;
scanf("%d",&k);
for(i=0;i<k;i++)
{double num[100];
scanf("%d",&n);
double sum=0;
for(j=0;j<n;j++)
{ scanf("%lf",&num[j]);
sum+=num[j];
}
double ave;
ave=sum/n;
double psum=0,d;
for(j=0;j<n;j++)
{psum+=pow((num[j]-ave),2);
}
d=sqrt(psum/n);
pri... |
38 | 18916 | int main(int argc, char* argv[])
{
int k,n,i,j;
double x[100],sum=0,sum2=0,aver=0,aver2=0,s[100];
scanf("%d",&k);
for(j=0;j<k;j++)
{
scanf("%d",&n);
scanf("%lf",&x[0]);
for(i=1;i<n;i++)
{
scanf(" %lf",&x[i]);
}
for(i=0;i<n;i++)
{
sum=sum+x[i];
}
aver=sum/n;
for(i=0;i<n... |
38 | 18917 | int main(int argc, char* argv[])
{
int k,n,i,j;
double a[1000],total=0,pf=0,jz,s;
scanf("%d",&k);
for(i=0;i<k;i++){
scanf("%d",&n);
total=0;
pf=0;
jz=0;
s=0;
for(j=0;j<n;j++){
scanf("%lf",&a[j]);
}
for(j=0;j<n;j++){
total+=a[j];
}
jz=total/n;
for(j=0;j<n;j++){
pf+=(a[j]-... |
38 | 18918 |
int main()
{
int n,a;
float x[1000],c,d=0;
double f,e=0,q;
scanf("%d",&n);
for(int i=0;i<n;i++)
{
scanf("%d",&a);
for(int k=0;k<a;k++)
{
scanf("%f",&x[k]);
d=d+x[k];
}
c=d/a;
for(int p=0;p<a;p++)
{
q=(x[p]-c)*(x[p]-c)/a;
e=e+q;
f=sqrt(e);
}
printf("%.5lf\n",f);
d=0;
e=0;
}
... |
38 | 18919 | int main()
{
int k;
scanf("%d",&k);
int i,j;
int n;
double cao[100],a[100],b[100],s[100];
double ji[1000];
for(i=0;i<k;i++)
{
scanf("%d",&n);
a[i] = 0;
for(j=0;j<n;j++)
{
scanf("%lf",&ji[j]);
a[i]=a[i]+ji[j];
}
a[i]=(double)a[i]/n;
s[i]=0;
for(j=0;j<n;j++)
... |
38 | 18920 | int main()
{
int t,n,i;
double s,r,p;
cin>>t;
while (t>0)
{
cin>>n;s=0;p=0;
for (i=1;i<=n;i++) { cin>>r;s+=r*r;p+=r;}
p=p/n;
s=sqrt(s/n-p*p);
cout<<fixed<<setprecision(5)<<s<<endl;
t--;
}
}
|
38 | 18921 | int main()
{
int k, n, i, j;
double x[100], s, a, q=0, A=0;
scanf("%d", &k);
for(i=0; i<k; i++){
A = 0;
scanf("%d", &n);
for(j=0; j<n; j++){
scanf("%lf", &x[j]);
}
for(j=0; j<n; j++){
A = A + x[j];
}
a = (double)A / n;
q = 0;
for(j=0; j<n; j++){
q = q + (x[j]-a)*(x[j]-a);
}
s = sqrt(q... |
38 | 18922 | int main()
{
int n,i,j,temp,k,b[100];
double a[100][1000],sum=0,s=0;
scanf("%d",&n);
for(i=0;i<n;i++)
{
scanf("%d",&b[i]);
for(j=0;j<b[i];j++)
{
scanf("%lf",&a[i][j]);
sum+=a[i][j];
}
sum=sum/b[i];
for(j=0;j<b[i];j++)
{
s+=(a[i][j]-sum)*(a[i][j]-sum);
}
s/=b[i];
s=sqrt(s);
printf(... |
38 | 18923 | int main(){
int k;
double sz[200],B=0,b=0,a=0;
scanf("%d",&k);
for(int i=0;i<k;i++){
double A=0,r=0;
int n;
scanf("%d\n",&n);
for(int p=0;p<n;p++){
scanf("%lf",&sz[p]);
A+=sz[p];
}
a=A/n;
for(int o=0;o<n;o++){
B=pow(sz[o]-a,2);
r+=B;
}
b=r/n;
b=pow(b,0.5);
printf("%.5lf\n",b);
}
return 0;
} |
38 | 18924 | int main()
{
int n,i,j;
double b,a,B,A;
int sz[200];
double x[200],s[200];
scanf("%d",&n);
for(i=0;i<n;i++)
{
scanf("%d",&(sz[i]));
A=0;
for(j=0;j<(sz[i]);j++)
{
scanf("%lf",&(x[j]));
A+=x[j];
}a=A/sz[i];//printf("%lf",a);
B=0;
for(j=0;j<sz[i];j++)
{
B+=(x[j]-a)*(x[j]-a);//prin... |
38 | 18925 | int main()
{
int k,n;
int i,j;
double a[1001],evg,sum= 0;
double *p=a;
cin >> k;
while(k--){
sum = 0;
cin >>n;
for(i = 0;i < n;i++){
cin >> *(p+i);
sum+=*(p+i);
}
evg= sum/n;
sum = 0;
for(i = 0;i < n;i++)
sum +=(*(p+i) - evg)*(*(p+i) - evg);
sum/=n;
sum = sqrt(sum);
cout <<fixed<<setpre... |
38 | 18926 |
int main(int argc, char* argv[])
{
int n,i,j,m;
double a[1001],ans,pfh,ave,*p;
scanf("%d",&n);
for(i=1;i<=n;i++){
scanf("%d",&m);
p=&a[0];
ave=0;
pfh=0;
for(j=1;j<=m;j++){
scanf("%lf",(p+j));
ave+=*(p+j);
}
ave/=m;
for(j=1;j<=m;j++){
pfh+=pow(*(p+j)-ave,2);
}
pfh/=m;
ans=sqrt(pfh);
... |
38 | 18927 | int main()
{
int k,i,j;
struct
{
int n;
double x[100];
double S;
}
sz[100];
scanf("%d",&k);
for(i=0;i<k;i++){
scanf("%d",&sz[i].n);
for(j=0;j<sz[i].n;j++){
scanf("%lf",&sz[i].x[j]);
}
}
for(i=0;i<k;i++){
double a=0;
for(j=0;j<sz[i].n;j++){
a+=sz[i].x[j]*1.0;
}
a/=sz[i].n;
sz[i].S=... |
38 | 18928 | void main()
{
int n,i;
scanf("%d",&n);
double *p[50]={0};
for(i=0;i<n;i++)
{
int m;
scanf("%d",&m);
int j;
double *x;
double sum=0;
for(j=0;j<m;j++)
{
x=(double*)malloc(sizeof(double));
scanf("%lf",x);
p[j]=x;
sum+=*x;
}
double a,c=0;
a=sum/m;
for(j=0;j<m;j++)
{
c+=(*(p[j])-a... |
38 | 18929 | int main()
{
double x[100];
int k,i;
scanf("%d",&k);
for(i=0;i<k;i++){
double s1=0,m=0,o=0;
int n,j;
scanf("%d",&n);
for (j=0;j<n;j++)
{
scanf("%lf",&x[j]);
s1+=x[j];
double a=0;
}
double a=(double)s1/n;
for(j=0;j<n;j++)
{
m+=(x[j]-a)*(x[j]-a);
}
printf("%.5f\n",sqrt((double... |
38 | 18930 | double sz[100][1000];
int main ()
{
int m,n,i,j;
double sum1=0.0;
double sum2=0.0;
double ave1,ave2;
scanf("%d",&m);
scanf("%d",&n);
for (j=0;j<n;j++){
scanf("%lf",&sz[0][j]);
sum1+=sz[0][j];
}
ave1=sum1/n;
for (j=0;j<n;j++){
sum2+=(sz[0][j]-ave1)*(sz[0][j]-ave1);
}
ave2=sqrt(sum2/n);
prin... |
38 | 18931 | int main()
{
int n,x,i=0;
double s[X],sum1=0,ave,sum2=0,f,*j;
scanf("%d",&n);
while(i<n)
{
scanf("%d",&x);
for(j=s;j<s+x;j++)
{
if(j==s)
scanf("%lf",&*j);
else
scanf(" %lf",&*j);
sum1=sum1+(*j);
}
ave=sum1/x;
for(j=s;j<s+x;j++)
{
(*j)=((*j)-ave)*((*j)-ave);
sum2=sum... |
38 | 18932 | void main()
{
int i,j,k;
scanf("%d\n",&k);
struct{
int n;
double a[100];
double s,c,sum;
double m;
}b[100];
for(i=0;i<k;i++){
scanf("%d\n",&b[i].n);
b[i].s=0;
for(j=0;j<b[i].n;j++){
scanf("%lf",&b[i].a[j]);
b[i].s+=b[i].a[j];
}
b[i].c=b[i].s/b[i].n;
b[i].sum=0;
for(j=0;j<b[i].n;j++){... |
38 | 18933 | void main()
{
int k,i,j,l,n;
double *p[100];
double a,sum=0,s=0,b,c,sum2=0,e;
scanf ("%d",&k);
for (l=0;l<k;l++)
{
a=0;sum=0;s=0;b=0;c=0;sum2=0;e=0;
scanf("%d",&n);
for (j=0;j<n;j++)
*(p+j)=(double * ) malloc (100*sizeof (double));
for (j=0;j<n;j++)
{
scanf("%lf",*(p+j));
sum=sum+**(p+j);
}
... |
38 | 18934 | void f(double *p,double n)
{
int i;
double ave=0,s=0;
for(i=0;i<=n-1;i++)
{
scanf("%lf",p+i);
ave=ave+*(p+i);
}
ave=ave/n;
for(i=0;i<=n-1;i++)
{
s=s+pow((*(p+i)-ave),2);
}
s=sqrt(s/n);
printf("%.5lf\n",s);
}
int main()
{
int k;
scanf("%d",&k);
int j;
for(j=1;j<=k;j++)
{
double a[102]={0},*p=a;
... |
38 | 18935 | int main()
{
double as[100][1000]={0};
int n,i,j,x[100]={0};
scanf("%d",&n);
for(i=0;i<n;i++)
{
scanf("%d",&x[i]);
for(j=0;j<x[i];j++)
{
scanf("%lf",&as[i][j]);
}
}
for(i=0;i<n;i++)
{
double sum=0;
for(j=0;j<x[i];j++)
{
sum+=as[i][j];
}
double abs;
abs=sum/(double)x[i];
double ... |
38 | 18936 | int main()
{
double x[100];
int k;
cin>>k;
while(k>0)
{
double n;
cin>>n;
int i;
double sum=0,ave,result,s=0;
for(i=0;i<n;i++)
{
cin>>x[i];
sum+=x[i];
}
ave=sum/n;
for(i=0;i<n;i++)
s=s+(x[i]-ave)*(x[i]-ave);
result=sqrt(s/n);
cout<<fixed<<setprecision(5)<<result<<endl;
k--;
}
ret... |
38 | 18937 | int main()
{
int group;
scanf("%d",&group);
int i;
for(i=0;i<group;i++)
{
int num;
scanf("%d",&num);
double *sz=(double*)malloc(sizeof(double)*num);
int j;
for(j=0;j<num;j++)
{
scanf("%lf",&sz[j]);
}
double sum=0;
for(j=0;j<num;j++)
{
sum=sum+sz[j];
}
double aver;
aver=sum/num;
... |
38 | 18938 | int main()
{
int k,n;double sum;double x[100];double a,b,c;double S;
int i,j;double sum1;
scanf("\n%d",&k);
for(i=0;i<k;i++)
{
sum=0;sum1=0;
scanf("\n%d\n",&n);
for(j=0;j<n;j++)
{
scanf("%lf",&x[j]);
sum+=x[j];
}
a=sum/n;
for(j=0;j<n;j++)
{
b=(x[j]-a)*(x... |
38 | 18939 | int main(){
int n,i,j,judge,p,q,m;
double mid,b[110]={0},f,y,total,a;
scanf("%d",&n);
for (i=1;i<=n;i++){
scanf("%d",&m);
total=0;
for (j=1;j<=m;j++){
scanf("%lf",&b[j]);
total=total+b[j];
}
a=total/m;
mid=0;
for (j=1;j<=m;j++){
mid=mid+(b[j]-a)*(b[j]-a)/m;
}
f=sqrt(mid);
printf("%.5lf\... |
38 | 18940 | int main()
{
int n,i;
scanf("%d",&n);
for(i=0;i<n;i++)
{
int m,j;
double x[1001]={0},a=0,s=0;
scanf("%d",&m);
for(j=0;j<m;j++)
{
scanf("%lf",&x[j]);
a=a+x[j];
}
a=a/m;
for(j=0;j<m;j++)
{
s=s+(x[j]-a)*(x[j]-a);
}
s=sqrt(s/m);
printf("%.5f\n",s);
}
return 0;
}
|
38 | 18941 | int main()
{
int k;//??????
cin>>k;
for(int i=0;i<k;i++)
{
double x[101],*p=x;//???????
double n,sum=0;;
cin>>n;
for(int j=0;j<n;j++){
cin>>*(p+j);
sum+=*(p+j);//????
}
double ave,s;
ave=sum/n;//?????
sum=0;
for(int j=0;j<n;j++) sum+=pow(*(p+j)-ave,2);//????
s=sqrt(sum/n);
cout<<fixed<<s... |
38 | 18942 | double equal(double *a,int n);
int main()
{
int n,m,i,j;
double s,a[1000],x;
scanf("%d",&n);
for(i=0;i<n;i++)
{
scanf("%d",&m);
for(j=0;j<m;j++)
scanf("%lf",&a[j]);
x=equal(a,m);
s=0.0;
for(j=0;j<m;j++)
s+=(a[j]-x)*(a[j]-x);
s=s/m;
s=sqrt(s);
printf("%.5f\n",s);
}
}
double equal(double *a,i... |
38 | 18943 | void main()
{
int n,k,l,h;
double a[1000],total=0,average=0,s=0,*p;
p=a;
scanf("%d",&n);
for(h=0;h<n;h++)
{
scanf("%d",&l);
for(k=0;k<l;k++)
{
scanf("%lf",(p+k));
total+=*(p+k);
}
average=total/l;
total=0;
for(k=0;k<l;k++)
{
total+=(*(p+k)-average)*(*(p+k)-average);
}
s=sqrt(total/l);... |
38 | 18944 | int main()
{
int k,n,i,j;
double sz[50][100],pj[50],fc[50],zs[50],fch[50];
scanf("%d",&k);
for(i=0;i<k;i++){
zs[i]=0;
fc[i]=0;
pj[i]=0;
fch[i]=0;
scanf("%d",&n);
for(j=0;j<n;j++){
scanf("%lf",&sz[i][j]);
}
for(j=0;j<n;j++){
z... |
38 | 18945 | int main()
{
int k,n,i,t;
double a[100]={0.0},e1=0.0,e2=0.0,e3=0.0,e4=0.0;
scanf("%d",&k);
for(;k>0;k--)
{
scanf("%d",&n);
printf("\n");
for(i=0;i<n;i++)
{
scanf("%lf",&a[i]);
}
for(i=0;i<n;i++)
{e1=e1+a[i];}
e2=e1/n;
for(i=0;i<n;i++)
{e3=e3+(a[i]-e2)*(a[i]-e2);}
e4=sqrt(e3/n);
printf("%.5lf\n",e4);
e1=0;e2=0;e3=0;e4=0... |
38 | 18946 | int main()
{
double a[100][1000];
int n,k,i,j;
double s1,num,s;
scanf("%d",&n);
for(j=0;j<n;j++)
{
scanf("%d",&k);
for(i=0;i<k;i++)
{
scanf("%lf",&(a[j][i]));
}
num=0.0;
for(i=0;i<k;i++)
{
num=num+a[j][i];
}
s=0.0;
for(i=0;i<k;i++)
{
s=s+(a[j][i]-num/k)*(a[j][i]-num/k);
}
s1=... |
38 | 18947 |
int main()
{
int i,j,k,a[100];
double sum[100]={0},fanghe[100]={0},fang[100]={0},b[100][100]={0},pinjun[100]={0};
scanf("%d",&k);
for(i=0;i<k;i++)
{
scanf("%d",&a[i]);
for(j=0;j<a[i];j++)
scanf("%lf",&b[i][j]);
}
for(i=0;i<k;i++)
{
for(j=0;j<a[i];j++)
{
sum[i]+=b[i][j];
}
pinjun[i]=sum[i]/... |
38 | 18948 | int main()
{
int k,n,i,j;
double x[100][1000],a,s[100]={0};
scanf("%d",&k);
for(i=0;i<k;i++){
a=0;
scanf("%d",&n);
for(j=0;j<n;j++){
scanf("%lf",&x[i][j]);
}
for(j=0;j<n;j++){
a=a+x[i][j];
}
a=a/n;
for(j=0;j<n;j++){
s[i]=s[i]+(x[i][j]-a)*(x[i][j]-a);
}
s[i]=s[i]/n;
s[i]=sqrt(s[i]);
}... |
38 | 18949 |
int main()
{
int n,a,i,j;
double x[100][1000],sum[100],S[100],ave[100],sum2[100];
scanf("%d",&n);
for(i=0;i<n;i++)
{
sum[i]=0;
S[i]=0;
ave[i]=0;
sum2[i]=0;
}
for(i=0;i<n;i++)
{
a=0;
scanf("%d",&a);
for(j=0;j<a;j++)
{
scanf("%lf",&x[i][j]);
sum[i]+=x[i][j];
}
ave[i]=sum[i]/(a*1.0);
f... |
38 | 18950 | int main()
{
int k,n,i,j;
double a[1000],sum,avr,s,S;
scanf("%d",&k);
for(i=0;i<k;i++)
{
sum=0,s=0;
scanf("%d",&n);
for(j=0;j<n;j++)
scanf("%lf",&a[j]);
for(j=0;j<n;j++)
sum+=a[j];
avr=sum/n;
for(j=0;j<n;j++)
s+=pow((a[j]-avr),2);
S=sqrt(s/n);
printf("%.5lf\n",S);
}
return 0;
} |
38 | 18951 | int main(){
int n,i,m[100],j;
double sum=0,a=0,sum2=0,result[100],sz[100];
scanf("%d",&n);
for(i=0;i<n;i++)
{scanf("%d",&m[i]);
for(j=0;j<m[i];j++)
{scanf("%lf",&sz[j]);}
sum=0;
sum2=0;
for(j=0;j<m[i];j++)
{sum+=sz[j];}
a=sum/(m[i]*1.0);
for(j=0;j<m[i];j++)
{sum2+=(sz[j]-a)*(sz[j]-a);}
result[i]=sqrt(sum2/(m[i]*1.0));
... |
38 | 18952 | int main( )
{
int k;
cin>>k;
while(k>0)
{
int n,i;
double a[100];
cin>>n;
for(i=0;i<n;i++)
cin>>a[i];
double *p=a;
double s1=0,s2=0,s3;
for(i=0;i<n;i++)
s1=s1+*(p+i);
s1=s1/n;
for(i=0;i<n;i++)
s2=pow(*(p+i)-s1,2.0)+s2;
s2=s2/n;
s3=sqrt(s2);
printf("%.5f\n", s3);
cout<<'\n';
k--;... |
38 | 18953 |
int main()
{
int k,n;
double x[1000],a,s;
cin>>k;
while (k--)
{
cin>>n;
a=0; s=0;
for (int i=0;i<n;i++)
{
cin>>x[i];
a=a+x[i];
}
a=a/n;
for (int i=0;i<n;i++)
s=s+(x[i]-a)*(x[i]-a);
s=s/n;
s=sqrt(s);
printf("%.5f\n",s);
}
return 0;
} |
38 | 18954 | int main()
{
int n,i,k,j;
double u[1000],sum,ava,sum2,ava2,x;
scanf("%d",&n);
for(i=0;i<n;i++)
{
sum=0;
sum2=0;
scanf("%d",&k);
for(j=0;j<k;j++)
{
scanf("%lf",&u[j]);
sum+=u[j];
}
ava=sum/(double)k;
for(j=0;j<k;j++)
{
u[j]=(u[j]-ava)*(u[j]-ava);
sum2+=u[j];
}
ava2=sum2/(double)k;
... |
38 | 18955 |
int main()
{
int t, k;
cin >> k;
for (t = 0; t < k; t++)
{
int i,n;
cin >> n;
double x[101],*p,sum=0,ave,ts=0;
p = x;
for (i = 0; i < n; i++)
{
cin >> *p;
sum += *p;
p++;
}
ave = sum / n;
p = x;
for (i = 0; i < n; i++)
{
ts += (*p - ave)*(*p - ave);
p++;
}
double e;
e = s... |
38 | 18956 | int main()
{
int n,i,k,m[100];
double a[1000],sum1,sum2,s[100]={0};
scanf("%d",&n);
for(i=1;i<=n;i++)
{
scanf("%d",&m[i]);
for(k=1;k<=m[i];k++)
{
scanf("%lf",&a[k]);
}
sum1=0;
sum2=0;
for(k=1;k<=m[i];k++)
{
sum1+=a[k];
}
sum1=sum1/m[i];
for(k=1;k<=m[i];k++)
{
sum2+=(a[k]-sum1... |
38 | 18957 | int main()
{
int n,i,j,k;
double A[100],s[100],a;
scanf("%d",&k);
for (i=0;i<k;i++)
{
a=0;s[i]=0;
scanf("%d",&n);
for (j=0;j<n;j++)
{
scanf("%lf",&A[j]);
a=a+A[j];
}
a=a/n;
for (j=0;j<n;j++)
{
s[i]=(A[j]-a)*(A[j]-a)+s[i];
}
s[i]=sqrt(s[i]/n);
}
for(i=0;i<k;i++)
printf("%.5f\n",s[i]... |
38 | 18958 | int main(int argc, char *argv[])
{
int n,i,j;
scanf("%d",&n);
int num;
double a[1000],sum=0,average,total=0;
for (i=0;i<=n-1;i++)
{
scanf("%d",&num);
sum=0;
total=0;
for (j=0;j<=num-1;j++)
{
scanf("%lf",a+j);
sum+=a[j];
}
average=sum/num;
f... |
38 | 18959 | int main()
{
int k,i;
cin>>k;
for(i=0;i<k;i++)
{
int n,j;
cin>>n;
double a[110],aver,s=0.0,x=0.0;
for(j=0;j<n;j++)
{
cin>>*(a+j);
x=x+*(a+j);
}
aver=x/n;
// cout<<aver<<endl;
for(j=0;j<n;j++)
s=s+(*(a+j)-aver)*(*(a+j)-aver);
s=sqrt(s/n);
printf("%.5lf\n",s);
cout<... |
38 | 18960 | int main()
{
int k;
scanf("%d",&k);
for(int i=0;i<k;i++)
{
int n;
double a[100],sum=0,x;
scanf("%d",&n);
for(int j=0;j<n;j++)
{
scanf("%lf",&a[j]);
sum=sum+a[j];
}
x=sum/n;
double s1=0,s2;
for(int j=0;j... |
38 | 18961 | int main()
{
int k;
cin>>k;
int i,j,n;
double x[1001],*p;
double sum,sum2,eve,s;
for(i=0;i<k;i++)
{
sum=0,sum2=0;
cin>>n;
p=x;
for(j=0;j<n;j++)
{
cin>>*p;
sum=sum+*p;
sum2=sum2+(*p)*(*p);
}
eve=sum/n;
s=sqrt((sum2+n*eve*eve-2*sum*eve)/n);
cout<<fixed<<setprecision(5)<<s<<endl;
}
... |
38 | 18962 | int main()
{
int n,i,j,num;
double av=0.0;
double sum=0.0;
double cha=0.0;
double s=0.0;
double f;
double a[100];
scanf("%d",&n);
for(i=0;i<n;i++)
{
av=0.0;
sum=0.0;
cha=0.0;
s=0.0;
f=0.0;
scanf("%d",&num);
for(j=0;j<num;j++)
{
scanf("%lf",&a[j]);
sum=sum+a[j];
}
av=sum/num;
for(j=... |
38 | 18963 | int main ()
{
int k, i, j, n;
scanf("%d", &k);
double b[100];
for(i=0;i<k;i++)
{
scanf("%d", &n);
double a[100], ave=0, sum=0, ss=0;
for(j=0;j<n;j++)
{
scanf("%lf", &a[j]);
}
for(j=0;j<n;j++)
{
sum += a[j];
}
ave=sum/n;
for(j=0;j<n;j++)
{
ss+=pow(a[j]-ave, 2);
}
b[i]=pow(ss/n,0.5... |
38 | 18964 | int main(int argc, char* argv[])
{
int k,n,i,j;
double a[150],b=0,c,e,f,g,S;
scanf("%d",&k);
for(i=1;i<=k;i++)
{
scanf("%d",&n);
b=0;
f=0;
for(j=1;j<=n;j++)
{
scanf("%lf",&a[j]);
b=b+a[j];
}
c=b/n;
for(j=1;j<=n;j++)
{
e=(a[j]-c)*(a[j]-c);
f=f+e;
}
g=f/n;
S=sqrt(g);
print... |
38 | 18965 | int main(){
int n,i,k;
double e=0,q=0;
int sz[100];
double a[100][1000];
double c[100],d[100];
scanf("%d",&n);
for(i=0;i<n;i++){
scanf("%d",&sz[i]);
for(k=0;k<sz[i];k++){
scanf("%lf",&a[i][k]);
e+=a[i][k];
}c[i]=e/sz[i];
e=0;
}for(i=0;i<n;i++){
for(k=0;k<sz[i];k++){
q+=... |
38 | 18966 | int main()
{
double a[100][100],b,s;
int n,m,i,j;
scanf("%d",&n);
for(i=0;i<n;i++)
{
b=0;
s=0;
scanf("%d",&m);
for(j=0;j<m;j++)
{
scanf("%lf",*(a+i)+j);
}
for(j=0;j<m;j++)
{
b=b+a[i][j];
}
b=b/m;
for(j=0;j<m;j++)
{
s=s+pow((a[i][j]-b),2);
}
s=s/m;
s=pow(s,0.5);
printf("%.... |
38 | 18967 | int main()
{
int n,k,i,j;
double x[100],sum,a,s;
scanf("%d",&k);
for(i=0;i<k;i++)
{
scanf("%d",&n);
sum=0;
for(j=0;j<n;j++)
{
scanf("%lf",&x[j]);
sum=sum+x[j];
}
a=sum/n;
s=0;
for(j=0;j<n;j++)
{
s=s+(x[j]-a)*(x[j]-a);
}
s=sqrt(s/n);
printf("%.5f\n",s);
}
return 0;
}
|
38 | 18968 |
int main()
{
int k,j,n,i;
double sum=0,ave=0,s=0,out;
double sz[100];
scanf("%d",&k);
for(j=1;j<=k;j++){
scanf("%d",&n);
for(i=0;i<n;i++){
scanf("%lf",&*(sz+i));
sum=sum+*(sz+i);
}
ave=sum/n;
for(i=0;i<n;i++){
s=s+(*(sz+i)-ave)*(*(sz+i)-ave);
}
out=sqrt(s/n);
printf("%.5f\n",out);
sum=0... |
38 | 18969 | int main()
{
int i,j,n,m;
double a[101],ave,r;
scanf("%d",&m);
for(j=0;j<m;j++){
scanf("%d",&n);
double sum=0;
for(i=0;i<n;i++) {
scanf("%lf",&a[i]);
sum+=a[i];
}
ave=sum/n;
sum=0;
double *p;
p=a;
for(i=0;i<n;i++){
sum+=(p[i]-ave)*(p[i]-ave);
}
r=(double)sqrt(sum/n);
printf("%.5lf\n",r);
}
} |
38 | 18970 | int main()
{
int k,i,j;
int n[100];
double t[100][1000];
double s[100];
double a[100];
double sum[100],sum2[100];
scanf("%d",&k);
for(i=0;i<k;i++)
{
scanf("%d",&n[i]);
for(j=0;j<n[i];j++)
{
scanf("%lf",&t[i][j]);
}
}
for(i=0;i<k;i++)
{
sum2[i]=0;
sum[i]=0;
a[i]=0;
for(j=0;j<n[i];j++)
{
... |
38 | 18971 |
int main()
{
int m, n;
double x[100], S, a;
cin >> m;
for (int i = 0; i < m; ++i)
{
cin >> n;
a = 0;
for (int j = 0; j < n; ++j)
{
cin >> *(x + j);
a += x[j];
}
a /= n;
S = 0;
for (int j = 0; j < n; ++j)
S += (x[j] - a) * (x[j] - a);
S = sqrt(S / n);
printf("%.5f\n", S);
}
return 0;... |
38 | 18972 | int main(int argc, char* argv[])
{
int n,k,i,j;
double s,a[100],sumf,sums,b,c[100];
scanf("%d",&k);
for(i=0;i<k;i++)
{
sumf=0;sums=0;b=0;
scanf("%d",&n);
for(j=0;j<n;j++)
{
scanf("%lf",&a[j]);
}
for(j=0;j<n;j++)
{
sumf += a[j];
}
b=sumf/(double)n;
for(j=0;j<n;j++)
{
c[j]=(a[j]-b)*(a... |
38 | 18973 | int main()
{
int n;
scanf("%d",&n);
int i,j;
double x,y,z;
struct pp{
int a;
float s[100];
}pl;
for(i=0;i<n;i++){
scanf("%d",&pl.a);
for(j=0;j<pl.a;j++){
scanf("%f",&pl.s[j]);
}
x=0;
y=0;
z=0;
for(j=0;j<pl.a;j++){
x+=pl.s[j];
}
for(j=0;j<pl.a;j++){
y+=(pl.s[j]-x/pl.a)*(pl... |
38 | 18974 | int main()
{
int k,i=0,j,num;
double shuzu[101],a,a_1,average,average_1,s;
scanf("%d",&k);
for(i=0;i<k;i++){
a=0;
a_1=0;
scanf("%d",&num);
for(j=0;j<num;j++){
scanf("%lf",shuzu+j);
a+=*(shuzu+j);
}
average=a/num;
for(j=0;j<num;j++){
a_1+=(*(shuzu+j)-average)*(*(shuzu+j)-average);
}
average_1=a_1/num;
s... |
38 | 18975 |
int main()
{
int k,rd,n,i;
double *x,plus,avex,output;
scanf("%d",&k);
for(rd=0;rd<k;rd++)
{
scanf("%d",&n);
plus=0;
output=0;
x=(double *)malloc(n*sizeof(double));
for(i=0;i<n;i++)
{
scanf("%lf",x+i);
plus+=*(x+i);
}
avex=plus/n;
for(i=0;i<n;i++)
{
output+=pow(*(x+i)-avex,2);
}
... |
38 | 18976 | double average(double *p,int n)
{
int i;double sum=0;
for(i=1;i<=n;i++)
{
sum=sum+*(p+i);
}
return sum/n;
}
double add(double *p,double x,int n)
{
int i;double sum=0;
for(i=1;i<=n;i++)
{
sum=sum+(*(p+i)-x)*(*(p+i)-x);
}
sum=sqrt(sum/n);
return sum;
}
int main()
{
int n,m,i,j;
cin>>m;
double a[1500],x,... |
38 | 18977 | int main()
{
int k=0;
double p=0.0,pa=0.0,a =0.0;
double sum2 = 0.0;
scanf("%d",&k);
for(int j=0;j<k;j++)
{
int n =0;
scanf("%d",&n);
double num[1000];
double sum = 0.0;
for(int i=0;i<n;i++)
{
scanf("%lf",&num[i]);
sum += num[i];
}
a = sum/n;
sum2 = 0;
for(int m=0;... |
38 | 18978 |
int main()
{
int i,j,n,b;
double a[1000];
double s;
scanf("%d",&n);
for(i=0;i<n;i++)
{ double c=0,p=0;
scanf("%d",&b);
for(j=0;j<b;j++)
{
scanf("%lf",&a[j]);
}
for(j=0;j<b;j++)
{
c=c+a[j];
}c=c/b;
for(j=0;j<b;j++)
{
p=p+(a[j]-c)*(a[j]-c);
}
s=sqrt(p/b);
printf("%.5lf\n... |
38 | 18979 | void main()
{
double *a[100],b,sum,e;
int i,n,k,m;
scanf("%d",&m);
k=0;
while(k<m)
{
scanf("%d",&n);
if(n==0)
printf("0");
else
{
for(i=0;i<=n-1;i++)
{
a[i] = (double*)malloc(sizeof(double));
scanf ("%lf",a[i]);
}
sum=0;
for(i=0;i<=n-1;i++)
{
sum=sum+*a[i];
}
b=sum/n;
sum... |
38 | 18980 |
int main()
{
int n,m,i,j,t[100];
double x[100][100];
double s,S,a;
scanf("%d",&n);
for (i=0;i<n;i++){
scanf("%d",&m);
for(j=0;j<m;j++){
scanf("%lf",&x[i][j]);
t[i]=m;
}
}
for (i=0;i<n;i++){
a=s=0;
for(j=0;j<t[i];j++){
a+= x[i][j]/t[i];
}
for(j=0;j<t[i];j++){
s+= (x[i][j]-a)... |
38 | 18981 |
int main()
{
double sz[100],*p,sum,average,total,s;
int k,i,n;
scanf("%d",&k);
for(i=1;i<=k;i++){
scanf("%d",&n);
double*p=sz;
sum=0.0;
total=0.0;
for(p=sz;p<sz+n;p++){
scanf("%lf",p);
sum=sum+*p;
}
average=sum/(1.0*n);
for(p=sz;p<sz+n;p++){
total=total+(*p-average)*(*p-average);
}
s=... |
38 | 18982 | int main()
{
int i,j,n,k;
double sum=0,SUM=0,a,x[1000],S;
scanf("%d",&k);
for(i=0;i<k;i++){
scanf("%d",&n);
sum=0;
for(j=0;j<n;j++){
scanf("%lf",&x[j]);
sum+=x[j];
}
a=(double)sum/n;
SUM=0;
for(j=0;j<n;j++){
SUM+=(x[j]-a)*(x[j]-a);
}
S=sqrt(SUM/n);
... |
38 | 18983 | int main(){
int k,i,n;
double *p;
double num[1000];
double temp=0,sum=0,a,S;
scanf("%d",&k);
for(i=0;i<k;i++){
sum=0;
temp=0;
scanf("%d",&n);
for(p=num;p<num+n;p++){
scanf("%lf",p);
sum+=(*p);
}
for(p=num;p<num+n;p++){
temp+=pow(*p-sum/n,2);
}
S=sqrt(temp/n);
printf("%.5lf\n",S);
}
re... |
38 | 18984 | int main(){
int k;
scanf("%d",&k);
int n[1000];
int i,j;
double shu[100];
double sum;
double aver[1000],res[1000];
for(i=0;i<k;i++){
scanf("%d",&n[i]);
sum=0;
for(j=0;j<n[i];j++){
scanf("%lf",&shu[j]);
}
for(j=0;j<n[i];j++){
sum+=shu[j];
}
aver[i]=sum/n[i];
res[i]=0;
for(j=0;j<n[i];j++){
res[i]+... |
38 | 18985 |
int main()
{ int a;
scanf("%d",&a);
int i,j,k;
int geshu[100];
double shu[100];
double sum,ave,sss,ans[100];
for(i=0;i<a;i++)
{ sum=0.0;
ave=0.0;
sss=0.0;
scanf("%d",&geshu[i]);
for(j=0;j<geshu[i];j++)
{
scanf("%lf",&shu[j]);
sum=sum+shu[j];
}
ave=sum/geshu[i];
for(k=0;k<geshu[i... |
38 | 18986 | int main()
{
int i,n,m,j;
scanf("%d",&n);
for(i=0;i<n;i++)
{
scanf("%d",&m);
double a[100]={0},s=0,ave,s1=0,s2=0,*p=a;
for(j=0;j<m;j++)
{
scanf("%lf",p+j);
s=s+a[j];
}
ave=s/m;
for(j=0;j<m;j++)
{
s2=s2+(*(p+j)-ave)*(*(p+j)-ave);
}
s1=sqrt(s2/m);
printf("%.5lf\n",s1);
}
return 0;
} |
38 | 18987 |
int main()
{
int counttest;
int n;
int i, j;
double average;
double sum;
double x[200];
double *p;
cin >> counttest;
while(counttest --)
{
cin >> n;
average = 0;
sum = 0;
p = x;
for(i = 0; i < n; i ++)
{
cin >> *p;
average += *p / n;
p ++;
}
p = x;
for(i = 0; i < n; i ++)
... |
38 | 18988 | int main()
{
int k,n,i,j,m[100];
double b[100][1000],a=0,s=0;
scanf("%d",&k);
for(i=0;i<k;i++)
{
scanf("%d",&m[i]);
for(j=0;j<m[i];j++)
scanf("%lf",&b[i][j]);
}
for(i=0;i<k;i++)
{
a=0;
s=0;
for(j=0;j<m[i];j++)
a+=b[i][j];
a=a/m[i];
for(j=0;j<m[i];j++)
s+=(b[i][j]-a)*(b[i][j]-a);
s=sqrt(s/m[i]);
printf("%.5lf\n",s);
... |
38 | 18989 |
int main(int argc, char* argv[])
{
double num[1000];
double *p;
p=num;
double sum,aver,a;
int n,m,i,j;
scanf("%d",&n);
for(i=0;i<n;i++){
sum=0;
scanf("%d",&m);
for(j=0;j<m;j++){
scanf("%lf",p+j);
sum+=(*(p+j));
}
aver=sum/m;
sum=0;
for(j=0;j<m;j++){
sum+=pow(((*(p+j))-... |
38 | 18990 | // ????.cpp : ??????????????
//
//#include "stdafx.h"
int main()
//int _tmain(int argc, _TCHAR* argv[])
{
int k;
cin>>k;
for(int t=0;t<k;t++)
{
double a[100],sum=0.0,arr;
int n;
cin>>n;
for(int i=0;i<n;i++)
{
cin>>*(a+i);
sum+=*(a+i);
}
arr=sum/n;
sum=0.0;
for(int i=0;i<n;i++)
{
sum+=(*(a+i)-arr)... |
38 | 18991 | int main()
{
int k,i,j;
float a[100][100];
double n[100],b[100],s1,c;
scanf("%d",&k);
for(i=0;i<k;i++){b[i]=0;
}
for(i=0;i<k;i++)
{
scanf("%lf",&n[i]);
for(j=0;j<n[i];j++)
{scanf("%f",&a[i][j]);
b[i]+=a[i][j]; }
}
for(i=0;i<k;i++){
s1=0;
c... |
38 | 18992 | int main()
{
int k,i=0;
scanf("%d",&k);
for(i=1;i<=k;i++){
int n,m;
scanf("%d",&n);
double jfc[100];
double sum=0.0;
for(m=0;m<=n-1;m++){
scanf("%lf",&(jfc[m]));
sum=sum+jfc[m];
}
double pj,bzc=0.0,fc;
pj=sum/(double)n;
for(m=0;m<=n-1;m++){
bzc=bzc+pow(jfc[m]-pj,2);
}
fc=sqrt(bzc/(doub... |
38 | 18993 | double S(void)
{
int i,n;
double a[100],*p,aver=0,s=0;
scanf("%d",&n);
for(i=0;i<n;i++)
{scanf("%lf",&a[i]);aver+=a[i];}
aver=aver/n;
for(p=a,i=0;i<n;i++)
{s+=(*(p+i)-aver)*(*(p+i)-aver);}
return (sqrt(s/n));
}
int main()
{
int i,n;
scanf("%d",&n);
for(i=0;i<n;i++)
{printf("%.5lf\n",S());}
return 0;
} |
38 | 18994 | int main(){
int n,i,m,k;
double sz[1000],s=0,r=0,result;
scanf("%d",&n);
for(i=0;i<n;i++){
s=0;
r=0;
scanf("%d",&m);
for(k=0;k<m;k++){
scanf("%lf",&sz[k]);
s+=sz[k];
}
for(k=0;k<m;k++){
r+=(sz[k]-s/(m*1.0))*(sz[k]-s/(m*1.0))/(m*1.0);
}
result=pow(r,0.5);
printf("%.5lf\n",result... |
38 | 18995 |
int main()
{
int n,k,i,j,k1;
double S,sum;
double *p;
double x[1000];
scanf("%d",&n);
for (j=0;j<n;j++){
sum=0;S=0;
scanf("%d",&k);
p=&x[0];
for (i=0;i<k;i++,p++){
scanf("%lf",p);
}
p=&x[0];
for (i=0;i<k;i++,p++){
... |
38 | 18996 | int main()
{
int k;
scanf("%d\n",&k);
int zu[k];
double x[k][1000];
int i,j;
for(i=0;i<k;i++)
{
scanf("%d\n",&zu[i]);
for(j=0;j<zu[i]-1;j++)
{
scanf("%lf ",&x[i][j]);
}
scanf("%lf\n",&x[i][zu[i]-1]);
}
double sum[k];
double xbar[k];
for(i=0;i<k;i++){ sum[i]=0;}
for(i=0;i<k;i++)
{
for(j=0;j<zu[i];j++)
{ sum[i]+=x[i... |
38 | 18997 |
int main(int argc, char* argv[])
{
int n,m,i,j;
double a[1000],ave1,ave2,sum1,sum2;
scanf("%d",&n);
for(i=0;i<(2*n);i=i+2){
scanf("%d",&m);
sum1=0;
sum2=0;
for(j=0;j<m;j++){
scanf("%lf",&a[j]);
sum1+=a[j];
}
ave1=sum1/m;
for(j=0;j<m;j++){
sum2+=pow((a[j]-ave1),2);
}
ave2=sqrt(sum2/m);
... |
38 | 18998 |
int main(int argc, char* argv[])
{
int n,u,i,j,k;
scanf("%d",&n);
int m;
double q=0,z=0;//he
double a[1001];
double b[1001];//jie guo
for(i=1;i<=n;i++){
z=0,q=0;
scanf("%d",&m);
for(j=1;j<=m;j++){
scanf("%lf",&a[j]);
q=q+a[j];}
for(k=1;k<=m;k++){
z=z+(a[k]-q/m)*(a[k]-q/m);}
b[i... |
38 | 18999 |
void count()
{
int n,i;
double *p[100],m=0,s=0;
scanf("%d",&n);
for(i=0;i<n;i++)
{
p[i]=(double *)malloc(sizeof(double));
scanf("%lf",p[i]);
m=m+*p[i];
}
m=m/n;
for(i=0;i<n;i++)
{
s=s+(*p[i]-m)*(*p[i]-m);
}
s=s/n;
printf("%.5f\n", sqrt(s));
}
void main()
{
int i,k;
scanf("%d",&k);
for(i=0;i<k;i... |
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