tomcha

#include <stdio.h>
#define MAXSTRINGS 10000
// 1-23に同じく、catとパイプでソースを受け取る
int main(){
  int c;
  char str[MAXSTRINGS];
  int i = 0, j;
  int n = 1;
  int qflg =0; // normal -> 0, sq -> 1, dq -> 2
  int eflg = 0; // normal -> 0, // -> 1, /* -> 2

tomcha

#include <stdio.h>
#define MAXCHARS 1000

void getlined(char s[], int lim);

int main(){
  char s[MAXCHARS];
  getlined(s, MAXCHARS);
  printf("%s\n", s);
}

tomcha

[tomcha]$ cat 2-3.c
#include <stdio.h>

int htoi(char s[]);
int main(){
  printf("%d\n", htoi("0x1a\n"));
}

int htoi(char s[]){
  int result = 0;

tomcha

#include <stdio.h>

void squeeze(char s1[], char s2[]);

int main(){
  char s1[11] = "abcdefffc\n";
  char s2[4] = "ce\n";
  squeeze(s1, s2);
  printf("%s\n", s1);
}

tomcha

#include <stdio.h>

int any(char s1[], char s2[]);

int main(){
  //"abcdefg"
  //"cde" -> 2
  //"cdf" -> -1
  printf("1:%d\n", any("abcdef", "cde"));
  printf("2:%d\n", any("abcdef", "cdf"));

tomcha

#include <stdio.h>

int unsigned setbits(unsigned x, int p, int n, unsigned y);

int main(){
  int x = 0b001110;
  int y = 0b0000000;
  int val = setbits(x, 3, 3, y);
  printf("%d\n", val);
// answer 0b0000111 -> 7;

tomcha

#include <stdio.h>

int invert(unsigned x, int p, int n);

int main(){
  int x = 0b00011100;
  int y = 0b00010000;
  // x -> 0b00000000 = 0
  // y -> 0b00001100 = 12

tomcha

#include <stdio.h>

int rightrot(unsigned x, int n);
int main(){
  int x = 0b111010;
  printf("%d\n",rightrot(x, 2));
  // 111010 -> 101110 = 46
}

int rightrot(unsigned x, int n){

tomcha

#include <stdio.h>

int bitcount_kai(unsigned x);

int main(){
  printf("%d\n", bitcount_kai(9));
}

int bitcount_kai(unsigned x){
  int b = 0;

tomcha

#include <stdio.h>

int lower(int c);

int main(){
  printf("%c\n", lower('T'));
  printf("%c\n", lower('t'));
  printf("%c\n", lower('Z'));
  printf("%c\n", lower('z'));
}