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- #include<stdio.h>
- int even(int i){
- if (i%2==0){
- return 1;
- }
- return 0;
- }
- int SNT(int a){
- int i;
- if (a<=1){
- return 0;
- }
- else{
- for (i=2;i<=a-1;i++){
- if (a%i==0){
- return 0;
- }
- return 1;
- }
- }
- }
- int main() {
- int i,n,m,max,j;
- int a[1000];
- int sum=0,count=0,k=0;
- printf("Nhap so hang tu: ");scanf("%d",&n);
- for(i=0;i<n;i++){
- printf("Nhap gia tri cho a[%d]: ",i);scanf("%d",&a[i]);
- }
- /*Tim Max*/
- max = a[0];
- for(i=0;i<n;i++){
- if(a[i]>max){
- max = a[i];
- }
- }
- printf("\nVi tri gia tri lon nhat: ");
- for(i=0;i<n;i++){
- if (a[i]==max){
- printf("a[%d] ",i);
- k+=1;
- }
- }
- /*Gia tri trung binh cac so chan*/
- /*Tong cac so chan*/
- for(i=0;i<n;i++){
- if (even(a[i])==1){
- count+=1;
- sum+=a[i];
- }
- }
- /*Gia tri trung binh*/
- printf("\nGia tri trung binh cac so chan:%d /%d = %f",sum,count,(double)sum/count);
- printf("\n");
- /*Boi cua 3 va 5*/
- printf("Boi cua 3 va 5 : ");
- for(i=0;i<n;i++){
- if (a[i] %3 == 0 && a[i] %5 ==0){
- printf("%3d",a[i]);
- }
- }
- printf("\n");
- /*Tim so nguyen to*/
- printf("So nguyen to trong mang: ");
- for(i=0;i<n;i++){
- if(SNT(a[i]) == 1){
- printf("%3d",a[i]);
- }
- }
- printf("\n");
- /*Xoa phan tu co gi tri lon nhat trong mang*/
- for (m=0;m<k;m++){
- for(i=0;i<n;i++){
- if(a[i]==max){
- for(j=i;j<n-1;j++){
- a[j]=a[j+1];
- }
- }
- }
- }
- printf("Mang sau khi xoa: ");
- for(i=0;i<n-k;i++){
- printf("%3d",a[i]);
- }
- printf("\n");
- return 0;
- }
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