Cadmy Magenta Yellow Key(по сути черный)
черный и желтый есть только в А
const T=50;
var a: array [1..T,1..T] of integer;
i,j,n,m:integer;
begin
write('Введите n: ');
readln(n);
write('Введите m: ');
readln(m);
for i:=1 to n do
for j:=1 to m do readln(a[i,j]);
for i:=1 to n do
for j:=1 to m do if i=j then a[i,j]:=a[i,j]*2;
for i:=1 to n do
begin
for j:=1 to m do write(a[i,j],' ');
writeln;
end;
end.
#include <iostream>
<span>#include <ctime>
</span><span>using namespace std;
</span>int main() {
<span> int n,m;
</span><span> FILE *fpt;
</span><span> cout<<"n = "; cin>>n;
</span><span> fpt=fopen("input.dat","wb");
</span><span> srand(time(NULL));
</span><span>// запись файла
</span><span> for (int i=0; i<n; i++) {
</span><span> m=rand()%8000-3000;
</span><span> cout<<m<<" ";
</span><span> fwrite(&m,sizeof(int),1,fpt);
</span><span> }
</span><span> cout<<endl;
</span><span> fclose(fpt);
</span><span> fpt=fopen("input.dat","rb+");
</span><span> int indf=0,indl=0,vf=0,vl=0,k=0;
</span><span>// чтение файла
</span><span> while (fread(&m,sizeof(int),1,fpt)!=0) {
</span><span> k++;
</span><span> if (!(m%2==0) && (indf==0)) { indf=k-1; vf=m; }
</span><span> if ((!m==0) && (m%2==0)) { indl=k-1; vl=m; }
</span><span> }
</span><span> cout<<"first odd = "<<vf<<" index = "<<indf<<endl;
</span><span> cout<<"last even = "<<vl<<" index = "<<indl<<endl;
</span><span>// обмен первого нечетного и последнего четного
</span><span> if (indf>0) {
</span><span> fseek(fpt,sizeof(int)*indf,SEEK_SET);
</span><span> fwrite(&vl,sizeof(int),1,fpt);
</span><span> }
</span><span> if (indl>0) {
</span><span> fseek(fpt,sizeof(int)*indl,SEEK_SET);
</span><span> fwrite(&vf,sizeof(int),1,fpt);
</span><span> }
</span><span> fclose(fpt);
</span><span> system("pause");
</span><span> return 0;
</span><span>}
</span>n = 6
<span>4368 2733 1112 2620 1941 753
</span><span>first odd = 2733 index = 1
</span><span>last even = 2620 index = 3
</span>
var
a, b: real;
begin
writeln('Введите 2 числа');
readln(a, b);
if a > b then
begin
a:= a + 3;
b:= b - 5;
end;
if a < b then
begin
a:= a - 5;
b:= b + 3;
end;
writeln('a = ', a, ', b = ', b);
end.
√13= 3.60555128
√14 = 3.74165739
√13.14= 3.62491379