static void string Main( [] args)
{
Console.Write("moi nhap so phan tu cua mang: ");
n = int int.Parse(Console.ReadLine());
[] a = int new int[n];
NhapMang1(a);
Output(a);
Console.WriteLine();
NhapMang2( a);out
Output(a);
Console.WriteLine();
[] arr = NhapMang3();int
Output(arr);
bt2(a);
Console.WriteLine( + bt3(a));"tong gia tri cac phan tu la"
Console.WriteLine("vi tri cua phan tu co gia tri bang x: "+bt4(a));
Console.WriteLine("vi tri phan tu co gia tri lon nhat trong mang la:
"+bt5());
Console.WriteLine("so phan tu co gia tri lon hon 0 la: "+bt6(a));
bt7(a);
bt8(a);
Console.ReadKey();
}
NhapMang1( [] a)static void int
{
( i = 0; i < a.Length; i++)for int
{
Console.Write($"a[{i}]: ");
a[i] = int.Parse(Console.ReadLine());
}
}
NhapMang2( [] a)static void out int
{
Console.Write("moi nhap so phan tu cua mang: ");
n = int int.Parse(Console.ReadLine());
a = new int[n];
( i = 0; i < a.Length; i++)for int
{
Console.Write($"a[{i}]: ");
a[i] = int.Parse(Console.ReadLine());
}
}
[] NhapMang3()static int
{
Console.Write("moi nhap so phan tu cua mang: ");
n = int int.Parse(Console.ReadLine());
[] a = int new int[n];
( i = 0; i < a.Length; i++)for int
{
Console.Write($"a[{i}]: ");
a[i] = int.Parse(Console.ReadLine());
};
a;return
}
Output( [] a)static void int
{
( i = 0; i < a.Length; i++)for int
{
Console.Write(a[i] + " ");
}
}
bt2( [] a)static void int
{
( i = 0; i < a.Length; i++)for int
{
Console.Write($"a[{i}]: ");
a[i] = int.Parse(Console.ReadLine());
};
( i = 0; i < a.Length; i++)for int
{
Console.Write(a[i] + " ");
};
Console.WriteLine();
}
bt3( [] a)static int int
{
sum = 0;int
( i = 0; i < a.Length; i++)for int
{
Console.Write($"a[{i}]: ");
a[i] = int.Parse(Console.ReadLine());
};
( i = 0; i < a.Length; i++)for int
{
sum += a[i];
};
sum;return
}
bt4( [] a)static int int
{
Console.WriteLine("moi nhap x: ");
x = int int.Parse(Console.ReadLine());
i = 0;int
kq = -1;int
(i = 0; i < a.Length; i++)for
{
Console.Write($"a[{i}]: ");
a[i] = int.Parse(Console.ReadLine());
};
(i = 0; i < a.Length; i++)for
{
(a[i] == x)if
{
kq = i;
;break
}
}
kq;return
}
bt5()static int
{
Console.Write("moi nhap so phan tu cua mang: ");
n = int int.Parse(Console.ReadLine());
[] a = double new double[n];
max = a[0];double
i;int
vitri = 0;int
(i = 0; i < a.Length; i++)for
{
Console.Write($"a[{i}]: ");
a[i] = double.Parse(Console.ReadLine());
};
(i = 0; i < a.Length; i++)for
{
(max <= a[i])if
{ max = a[i];
vitri = i;
}
}
vitri;return
}
bt6( [] a)static int int
{
i = 0;int
count = 0;int
(i = 0; i < a.Length; i++)for
{
Console.Write($"a[{i}]: ");
a[i] = int.Parse(Console.ReadLine());
(a[i] >0)if
{
count = count + 1;
}
};
count; return
}
bt7( [] a)static void int
{
( i = 0; i < a.Length; i++)for int
{
Console.Write($"a[{i}]: ");
a[i] = int.Parse(Console.ReadLine());
};
c; int
( i = 0; i < a.Length - 1; i++)for int
{
( j = i + 1; j < a.Length; j++)for int
{
(a[i] > a[j])if
{
c = a[i];
a[i] = a[j];
a[j] = c;
}
}
};
( i = 0; i < a.Length; i++)for int
{ Console.Write(a[i] + ); }" "
}
bt8( [] a)static void int
{
Console.Write("moi nhap k: ");
k = int int.Parse(Console.ReadLine());
Console.Write("moi nhap l: ");
l = int int.Parse(Console.ReadLine());
(k < 0 | l<0 | k>a.Length | l> a.Length)while
{
Console.Write("moi nhap k: ");
k = int.Parse(Console.ReadLine());
Console.Write("moi nhap l: ");
l = int.Parse(Console.ReadLine());
};
( i = 0; i < a.Length; i++)for int
{
Console.Write($"a[{i}]: ");
a[i] = int.Parse(Console.ReadLine());
};
c;int
( i = 0; i < a.Length - 1; i++)for int
{
( j = i + 1; j < a.Length; j++)for int
{
(a[i] > a[j])if
{
c = a[i];
a[i] = a[j];
a[j] = c;
}
}
};
( i = 0; i < a.Length; i++)for int
{
(i >= k & i <= l)if
{
Console.Write(a[i] + " ");
};
}
}

Preview text:

static void Main(string[] args) {
Console.Write("moi nhap so phan tu cua mang: ");
int n = int.Parse(Console.ReadLine()); int[] a = new int[n]; NhapMang1(a); Output(a); Console.WriteLine(); NhapMang2(out a); Output(a); Console.WriteLine(); int[] arr = NhapMang3(); Output(arr); bt2(a);
Console.WriteLine("tong gia tri cac phan tu la" + bt3(a));
Console.WriteLine("vi tri cua phan tu co gia tri bang x: "+bt4(a));
Console.WriteLine("vi tri phan tu co gia tri lon nhat trong mang la: "+bt5());
Console.WriteLine("so phan tu co gia tri lon hon 0 la: "+bt6(a)); bt7(a); bt8(a); Console.ReadKey(); }
static void NhapMang1(int[] a) {
for (int i = 0; i < a.Length; i++) { Console.Write($"a[{i}]: ");
a[i] = int.Parse(Console.ReadLine()); } }
static void NhapMang2(out int[] a) {
Console.Write("moi nhap so phan tu cua mang: ");
int n = int.Parse(Console.ReadLine()); a = new int[n];
for (int i = 0; i < a.Length; i++) { Console.Write($"a[{i}]: ");
a[i] = int.Parse(Console.ReadLine()); } } static int[] NhapMang3() {
Console.Write("moi nhap so phan tu cua mang: ");
int n = int.Parse(Console.ReadLine()); int[] a = new int[n];
for (int i = 0; i < a.Length; i++) { Console.Write($"a[{i}]: ");
a[i] = int.Parse(Console.ReadLine()); }; return a; } static void Output(int[] a) {
for (int i = 0; i < a.Length; i++) { Console.Write(a[i] + " "); } } static void bt2(int[] a) {
for (int i = 0; i < a.Length; i++) { Console.Write($"a[{i}]: ");
a[i] = int.Parse(Console.ReadLine()); };
for (int i = 0; i < a.Length; i++) { Console.Write(a[i] + " "); }; Console.WriteLine(); } static int bt3(int[] a) { int sum = 0;
for (int i = 0; i < a.Length; i++) { Console.Write($"a[{i}]: ");
a[i] = int.Parse(Console.ReadLine()); };
for (int i = 0; i < a.Length; i++) { sum += a[i]; }; return sum; } static int bt4(int[] a) {
Console.WriteLine("moi nhap x: ");
int x = int.Parse(Console.ReadLine()); int i = 0; int kq = -1;
for (i = 0; i < a.Length; i++) { Console.Write($"a[{i}]: ");
a[i] = int.Parse(Console.ReadLine()); };
for (i = 0; i < a.Length; i++) { if (a[i] == x) { kq = i; break; } } return kq; } static int bt5() {
Console.Write("moi nhap so phan tu cua mang: ");
int n = int.Parse(Console.ReadLine()); double[] a = new double[n]; double max = a[0]; int i; int vitri = 0;
for (i = 0; i < a.Length; i++) { Console.Write($"a[{i}]: ");
a[i] = double.Parse(Console.ReadLine()); };
for (i = 0; i < a.Length; i++) { if (max <= a[i]) { max = a[i]; vitri = i; } } return vitri; } static int bt6(int[] a) { int i = 0; int count = 0;
for (i = 0; i < a.Length; i++) { Console.Write($"a[{i}]: ");
a[i] = int.Parse(Console.ReadLine()); if (a[i] >0) { count = count + 1; } }; return count; } static void bt7(int[] a) {
for (int i = 0; i < a.Length; i++) { Console.Write($"a[{i}]: ");
a[i] = int.Parse(Console.ReadLine()); }; int c;
for (int i = 0; i < a.Length - 1; i++) {
for (int j = i + 1; j < a.Length; j++) { if (a[i] > a[j]) { c = a[i]; a[i] = a[j]; a[j] = c; } } };
for (int i = 0; i < a.Length; i++)
{ Console.Write(a[i] + " "); } } static void bt8(int[] a) {
Console.Write("moi nhap k: ");
int k = int.Parse(Console.ReadLine());
Console.Write("moi nhap l: ");
int l = int.Parse(Console.ReadLine());
while (k < 0 | l<0 | k>a.Length | l> a.Length) {
Console.Write("moi nhap k: ");
k = int.Parse(Console.ReadLine());
Console.Write("moi nhap l: ");
l = int.Parse(Console.ReadLine()); };
for (int i = 0; i < a.Length; i++) { Console.Write($"a[{i}]: ");
a[i] = int.Parse(Console.ReadLine()); }; int c;
for (int i = 0; i < a.Length - 1; i++) {
for (int j = i + 1; j < a.Length; j++) { if (a[i] > a[j]) { c = a[i]; a[i] = a[j]; a[j] = c; } } };
for (int i = 0; i < a.Length; i++) {
if (i >= k & i <= l) { Console.Write(a[i] + " "); }; } }