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1997�N1��20��{

1.��I�t�B�X�ɋ΂߂�Ԏq��́A��x�݂ɒ��H��H�ׂɍs��܂��B��́A��Ă��܂��H��450�~�̒�H��H�ׂ܂��B�ł��A�l�C�Ȃ̂ŕ��΂Ȃ��Ă͂Ȃ�܂��B��͖Z��̂ŁA10�l�ȏ�Ȃ��ł��Ȃ�A�ׂ̂��ƍ��X�g��̃��`�ɂ��悤�Ǝv��܂��B�R�[�q�[�t��800�~�ł��B��A��H��ōςނȂ�110�~�̊ʃR�[�q�[��Ǝv��܂��B��Ȃ݂ɁA�Z��Ȃ��Ȃ�20�l�܂ł̍s��Ȃ�䖝��đ҂��܂��B

�ȏ�̕��Ԏq��̒��x�݂̍s��Ə��z�� if - then - else ��g��A��S��Y��̌`�ŏ��\��Ȃ��B

2.��͎��R�� N ��ł��邩�ǂ��𔻒肷�� BASIC ��ɂ��v��O�� (1997�N��Z��^�[��)��̂܂� C ��ɏ��̂ł��B

 1: #include <stdio.h>
 2: main() {
 3:     int i,j,k,n;
 4:     char buf[20];
 5:     printf("N = ");
 6:     fgets(buf,18,stdin);
 7:     n = atoi(buf);
 8:     for (i = 1; i <= n; i++ ) {
 9:         j = i * i;
10:         k = n - j;
11:         printf("K = %d\n",k);
12:         if (k <= 0) goto line80;
13:     }
14: line80:
15:     if (k < 0) goto line110;
16:     printf("YES %d is %d * %d\n",n,i,i);
17:     goto line120;
18: line110:
19:     printf("NO\n");
20: line120:
21:     exit(0);
22: }

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(2)��R�� N �̓��͂̂Ƃ�� 16, 13, -1 ��͂��ƁA��ꂼ��ǂ̂悤�ȏo�͂��邩�B

3.�ȉ��̂Q�̃v��O��Ŏg��Ă��f�[�^�o�b�t�@�̂��Ƃ��ƌĂԂ��B�܂��A��ꂼ��̃v��O��̎��s�œ��o�͂��Ȃ��B

�v��O��1

#include <stdio.h>
#define N 10
static int buffer[100];
static int *bp = buffer;
void push(int n) {
    *bp++ = n;
}
int pop(void) {
    return(*--bp);
}
main() {
    int i;
    for ( i = 0; i < N ; i++ ) push(i*i);
    for ( i = 0; i < N ; i++ ) printf("%d ",pop());
}

�v��O��2

#include <stdio.h>
#define N 10
static int buffer[100];
static int *bh=buffer, *bt=buffer;
qput(int n) {
    *bh++=n;
}
int qget() {
    if (bh > bt) return(*bt++);
    else { printf("Error!\n"); exit(1);}
}
main() {
    int i;
    for (i = 0; i < N; i++) qput(i*i);
    for (i = 0; i < N; i++) printf("%d ",qget());
}

4.��X�g�\��Ƃ͂ǂ̂悤�ȃf�[�^�\��B�܂��A��X�g�̒ǉ��A�폜�ɕK�v�Ƃ��鑀��Ȃ��B

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