プログラマ専用SNS ミクプラ

コード:

#include <stdio.h>
#include <stdlib.h>
#include <time.h>

char *card(void){
	int num,i;
	char *test[13] = {"A","2","3","4","5","6","7","8","9","10","J","Q","K"};
	num = rand() % 13;
	return test[num];
}

int main (void){
	char c;
	char *funyu;

	srand((unsigned)time(NULL));
	while(1){
		printf("Hit or Stand?(h/s)¡§");
		scanf("%c",&c);
		if(c == 's')break;
		funyu = card();
		printf("%s\n",funyu);
	}

	return 0;
}

コード:

#include <stdio.h>
#include <stdlib.h>
#include <time.h>

char card(void){
	int num,i;
	static int max = 13;
	static char test[13] = {'A','2','3','4','5','6','7','8','9','10','J','Q','K'};
	if(max== 0)return '\0';
	num = rand() % max;
	char ret = test[num];
	for( i = num; i < max - 1; i++ )
		test[i] = test[i+1];
	max--;
	return ret;
}

int main (void){
	char c;
	char funyu;

	srand((unsigned)time(NULL));
	while(1){
		printf("Hit or Stand?(h/s)¡§");
		scanf("%s",&c);
		if(c == 's')break;
		funyu = card();
		printf("%c\n",funyu);
	}

	return 0;
}

コード:

#include <stdio.h>
#include <stdlib.h>
#include <time.h>

#define UNIQUERAND_MAX 13

#define BIT_MAX UNIQUERAND_MAX
int UniqueRand_bitTable[BIT_MAX];

void UniqueRand_bitInit() {
    int i;
    for(i=0;i<BIT_MAX;i++)UniqueRand_bitTable[i]=0;
}
 
void UniqueRand_bitAdd(int pos,int value) {
    pos++;
    while(pos<=BIT_MAX) {
        UniqueRand_bitTable[pos-1]+=value;
        pos+=pos & (-pos);
    }
}
 
int UniqueRand_bitSum(int pos) {
    int sum=0;
    pos++;
    while(pos>0) {
        sum+=UniqueRand_bitTable[pos-1];
        pos-=pos & (-pos);
    }
    return sum;
}
 
void UniqueRand_init() {
    UniqueRand_bitInit();
}
 
void UniqueRand_registerNumber(int num) {
    if(num<0 || num>=BIT_MAX)return;
    if(UniqueRand_bitSum(num)-(num==0?0:UniqueRand_bitSum(num-1))!=0)return;
    UniqueRand_bitAdd(num,1);
}
 
void UniqueRand_unRegisterNumber(int num) {
    if(num<0 || num>=BIT_MAX)return;
    if(UniqueRand_bitSum(num)-(num==0?0:UniqueRand_bitSum(num-1))==0)return;
    UniqueRand_bitAdd(num,-1);
}
 
int UniqueRand_nextInt() {
    int left,right,mid;
    int max=BIT_MAX-UniqueRand_bitSum(BIT_MAX-1);
    if(max<=0)return -1;
    int pos=rand()%max;
    left=0;right=BIT_MAX-1;
    while(left<=right) {
        mid=(left+right)/2;
        if(mid-UniqueRand_bitSum(mid)>=pos)right=mid-1; else left=mid+1;
    }
    UniqueRand_registerNumber(right+1);
    return right+1;
}
 
int main(void) {
    int i;
    srand((unsigned int)time(NULL));

    UniqueRand_init();
    for(i=0;i<UNIQUERAND_MAX;i++) {
        printf("%d\n",UniqueRand_nextInt());
    }

    return 0;
}

コード:

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>

char* pull(void){
	static int max = 52;
	static char* card[52] = {
		"s1","s2","s3","s4","s5","s6","s7","s8","s9","s10","sJ","sQ","sK",
		"h1","h2","h3","h4","h5","h6","h7","h8","h9","h10","hJ","hQ","hK",
		"c1","c2","c3","c4","c5","c6","c7","c8","c9","c10","cJ","cQ","cK",
		"d1","d2","d3","d4","d5","d6","d7","d8","d9","d10","dJ","dQ","dK",
	};
	if(max == 0)return "\0";
	int s = rand() % max;
	char ret[256];
	strcpy( ret, card[s] );
	card[s] = card[max-1];
	max--;
	return ret;
}

void main(){
	char in[2], out[4];
	srand((unsigned int)time(NULL));
	while(1){
		printf("Hit or Stand?(h/s):");
		scanf("%s",&in);
		if(strcmp(in,"h")!=0)continue;
		if(strcmp(in,"s")==0)break;
		strcpy( out, pull() );
		if(strcmp(out,"\0")==0)break;
		printf("%s\n",out);
	}
}