A 10x10 1. :
for n:=1 to 4 do
for k:=1 to n+1 do begin
A[n,k]:=A[n,k]-1;
A[n,k+1]:=A[n,k]-1;
end;
0?
1) 0
2) 4
3) 8
4) 16
.
, :
n=1 4
k=1 n+1
(n=1, k=1) 1 0
, ,
1, -1.
(n=1, k=2) -2, , k=1, n:=1 to 4 0, 4 .
2.
: 2. : 2
↑ 2 3378 ( )
A[1..10,1..10] 4. :
for i:=1 to 4 do
for j:=1 to 5 do begin
A[i,j]:=A[i,j]+4;
A[j,i]:=A[j,i]+5;
end;
9?
1) 20
2) 16
3) 5
4) 4
.
10x10. A[i,j]: = A[i,j]+4 i j 4 .
A[j,i]: = A[j,i]+5 i j 5 .
4, 4 * 5 = 20 8, 16 13, 4 8 4 9.
:
| 4 + 4 + 5 | 4 + 4 + 5 | 4 + 4 + 5 | 4 + 4 + 5 | 4 + 4 |
| 4 + 4 + 5 | 4 + 4 + 5 | 4 + 4 + 5 | 4 + 4 + 5 | 4 + 4 |
| 4 + 4 + 5 | 4 + 4 + 5 | 4 + 4 + 5 | 4 + 4 + 5 | 4 + 4 |
| 4 + 4 + 5 | 4 + 4 + 5 | 4 + 4 + 5 | 4 + 4 + 5 | 4 + 4 |
| 4 + 5 | 4 + 5 | 4 + 5 | 4 + 5 |
4.
: 4. : 4
↑ 3 3354 ( )
A 0 10. , , .
A[0]: = 1;
for i: = 1 to 10 do
A[i]: = 2+A[i-1];
for i: = 0 to 5 do
A[10-i]: = A[i]-1;
?
1) 1 3 5 7 9 10 8 6 4 2 0
2) 1 3 5 7 9 11 13 15 17 19 21
3) 1 3 5 7 9 11 9 7 5 3 1
4) 1 3 5 7 9 11 8 6 4 2 0
.
, :
i=0: a[0]=1,
i=1: a[1]=3,
i=2: a[2]=5,
i=3: a[3]=7,
...
i=10: a[10]=21.
, :
i=0: a[10]=a[0]-1 = 0,
i=1: a[9]=a[1]-1 = 2,
...
i=5: a[5]=a[5]-1 = 10,
: 1, 3, 5, 7, 9, 10, 8, 6, 4, 2, 0.
1.
|
|
|
: 1. : 1
↑ 4 3370 ( )
0 10 i. , :
for i:=0 to 10 do A[i]:=i;
for i:=0 to 9 do begin
A[i]:=A[i+1];
end;
?
1) 10 0 1 2 3 4 5 6 7 8 9
2) 1 2 3 4 5 6 7 8 9 10 10
3) 0 0 1 2 3 4 5 6 7 8 9
4) 1 2 3 4 5 6 7 8 9 10 0
.
:
0 10 A[i]:=i, . . 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10;
0 9 A[i]:=A[i+1], . . , , 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10.
2.
: 2. : 2
↑ 5 507 ( )
:
| = 3 b = a + 3 b = 1 b c = b + 3 * a | a: = 3; b: = a + 3; b: = 1 b; c: = b + 3 * a; |
| = 3; b = a + 3; b = 1 b; c = b + 3 * a; | a: = 3; b: = a + 3; b: = 1 b; c: = b + 3 * a; |
.
a: = 3
b: = a + 3 = 0
b: = 1 b = 1
c: = b + 3 * a = 1 9 = 10
: -10. : -10
↑ 6 4586 ( )
, :
1
5
, 1, , 5.
, 2 101 5 . .
, 1211
1
5
1
1
2 17.
.
, .
5, 1, , 2.
101 = 100 + 1 ( 1),
100 = 20 * 5 ( 2),
20 = 4 * 5 ( 2),
4 = 3 + 1 ( 1),
3 = 2 + 1 ( 1).
: 11221.
: . : 11221
↑ 7 3594 ( )
a b :
a:= 42;
b:= 14;
a:= a div b;
b:= a*b;
a:= b div a;
.
div .
mod .
a:= 42;
b:= 14;
a:= a div b = 3;
b:= a*b = 3*14 = 42;
a:= b div a = 14;
: 14,42. : 14,42
↑ 8 3241 ( )
, :
var n, s: integer;
begin
n:= 1;
s:= 0;
while n <= 101 do begin
s:= s + 7;
n:= n + 1
end;
write(s)
end.
.
while , n <= 101, . . n , . , s n :
|
|
|
, 
, , : n:= 101 + 1.
: 707. : 707
↑ 9 3245 ( )
, :
var n, s: integer;
begin
n:= 3;
s:= 0;
while n <= 7 do begin
s:= s + n;
n:= n + 1
end;
write(s)
end.
.
while , n <= 7, . . n , .
s n:
s 0 3 7 12 18 25
n 3 4 5 6 7 8
( n:= n + 1 , , n=8 s:= s + n ).
: 25. : 25
↑ 10 3772 ( )
, :
var k, s: integer;
begin
s:=3;
k:=1;
while k < 25 do begin
s:=s+k;
k:=k+2;
end;
write(s);
end.
.
while , k < 13, . . k , .
s k:
s 3 4 7 12 19 28 39 52 67 84 103 124 147
k 1 3 5 7 9 11 13 15 17 19 21 23 25
: 147. : 147
