c语言有一个由大写字母和0-9数字混合的字符串,请打印出由纯字母组成的最大连续子串??? C语言问题：如何从一个由字母和数字组成的字符串中提取出相应的...
C\u8bed\u8a00\u7f16\u7a0b\u9898 \u8f93\u5165\u4e00\u4e2a\u7531\u5927\u5199\u5b57\u6bcd\u7ec4\u6210\u7684\u5b57\u7b26\u4e32,\u6c42\u5b57\u7b26\u4e32\u4e2d\u5305\u542b\u4e86\u51e0\u4e2a\u4e0d\u540c\u7684\u5b57\u6bcdchar str[99]="";int i,n=0,times[26]={0};gets(str);for(i=0;str[i];i++){ times[str[i]-'A']++;}for(i=0;i<26;i++) if(times[i])n++; printf("%d\u4e2a\u4e0d\u540c\u5b57\u6bcd\n",n);
#include int main(int argc, char const *argv[]){ char line[1024] = "\0"; // = 'a' and line[i] = 'A' and line[i] <= 'Z') ) printf("%c",line[i]); } printf("\n"); return 0;}\u8fd0\u884c\uff1a
Cat808her_+in_+e87Catherine
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int main()
{
char a[1000];
scanf("%s", &a);
const int len = strlen(a);
printf("input string's len is %d\n", len);
char* b = new char[len+1];
b[0] = '\0';
char* tmp = new char[len+1];
int maxlen = 0;
int k = 0;
for (int i = 0; i < len; i++)
{
if (a[i] >= 'A' && a[i] <= 'Z')
{
tmp[k++] = a[i];
}
else
{
tmp[k] = '\0';
if (k > maxlen)
{
strcpy(b, tmp);
maxlen = k;
}
k = 0;
}
}
tmp[k] = '\0';
if (k > maxlen)
{
strcpy(b, tmp);
maxlen = k;
}
printf("max continous length is %d.[string is \"%s\"]\n", maxlen, b);
delete[] b;
delete[] tmp;
return 0;
}
用一个循环判断字符串里面的每个字符是否 (>'A' && <'Z'
绛旓細};char c[11]={"ABCDEFGHIJ"};int i,l,j;gets(a);l=strlen(a);for(i=0;i<l;i++){ if(a[i]>='a'&&a[i]<='z')a[i]-=32;else if(a[i]>='A'&&a[i]<='Z')a[i]+=32;else if(a[i]>='0'&&a[i]<='9')a[i]+='A'-'0';} puts(a);return 0;} ...
绛旓細= othCnt = 0;//puts ("杈撳叆瀛楃涓诧細");//gets (str);puts (str);while (*p) {if (*p>='A'&&*p<='Z')capCnt++;else if (*p>='a'&&*p<='z')lowCnt++;else if (*p>='0'&&*p<='9')numCnt++;elseothCnt++;p++; }putchar ('\n');printf ("澶у啓瀛楁瘝%d涓猏n"...
绛旓細left(){ j--;}void go_down(){ i++;}void go_up(){ i--;};void left_down(){ go_left(); go_down();}void right_up(){ go_right(); go_up();}void go(){ while(1){ if(j+1 < n){ go_right()...
绛旓細浠ｇ爜锛1銆#include<iostream> 2銆乽sing namespace std;3銆乮nt main()4銆亄 5銆乧har c;6銆乧in>>c;7銆乧out<<(int)c<<endl;8銆乺eturn 0;9銆亇 ASCII鐮佲榓鈥欎负97鈥楢鈥欎负65
绛旓細鏍规嵁ascii鐮佸煎垽鏂嵆鍙傜敱浜庢暟瀛楋紝澶у皬鍐欏瓧姣鍧囧垎鍒负杩炵画瀛樺偍锛屾墍浠ュ彧闇瑕佷笌瀵瑰簲鐨勬渶澶ф渶灏忓兼瘮杈冨嵆鍙‘瀹氬瓧绗︾被鍨嬨備唬鐮佸涓嬶細include <stdio.h>int main(){char c;c = getchar();//璇诲彇涓涓瓧绗︺俰f(c >='0' && c<='9')printf("鏄暟瀛梊n");else if(c >='a' && c<='z' ||...
绛旓細else if(a[i] >= '0' && a[i] <= '9') a3++;else if(a[i] == ' ') a4++;} printf("鏈澶у啓瀛楁瘝 %d 涓猏n",a1); // a1,a2,a3,a4鏄眬閮ㄥ彉閲忥紝涓巑ani()鍑芥暟鐨勫悓鍚嶅彉閲忔病鍏崇郴銆俻rintf("鏈夊皬鍐欏瓧姣 %d 涓猏n",a2);printf("鏈夋暟瀛 %d 涓猏n",a3);printf("鏈夌┖鏍 %d 涓...
绛旓細c2=ch+1;if(ch=='A') c1=ch+25; //鏄== 涓嶆槸 = else if(ch=='Z') c2=ch-25; //鏄== 涓嶆槸 = putchar(c1);putchar(ch);putchar(c2);putchar('\n');} 2.1 include <stdio.h> main(){ char c;scanf("%c",c);if('0'<=c&&c<='9')printf("0-9");els...
绛旓細printf("Please enter a char:");while((ch=getchar())!=EOF) { if(ch>='0'&&ch<='9') { printf("%c鏄暟瀛楀瓧绗︼細",ch); } else if(ch>='a'&&ch<='z') { printf("%c鏄皬鍐欏瓧姣:",ch); } else if(ch>='A'&&ch<='Z') { printf("%c鏄澶у啓瀛楁瘝:...
绛旓細鏍囪瘑绗﹂氬父鐢瀛楁瘝鍜鏁板瓧浠ュ強鍏跺畠瀛楃鏋勬垚锛屽湪缂栫▼璇█涓紝鏍囪瘑绗﹀氨鏄▼搴忓憳鑷繁瑙勫畾鐨勫叿鏈夌壒瀹氬惈涔夌殑璇嶏紝姣斿绫诲悕绉帮紝灞炴у悕绉帮紝鍙橀噺鍚嶇瓑銆C璇█涓瀵规爣璇嗙鐨勮瀹 1.鏍囪瘑绗鐢卞瓧姣锛圓-Z,a-z锛夈佹暟瀛楋紙0-9锛夈佷笅鍒掔嚎鈥淿鈥濈粍鎴愶紝骞朵笖棣栧瓧绗︿笉鑳芥槸鏁板瓧锛屼絾鍙互鏄瓧姣嶆垨鑰呬笅鍒掔嚎銆備緥濡傦紝姝ｇ‘鐨勬爣璇嗙锛...
绛旓細// if( (c>='a' && c<='z') || (c>='A' && c<='Z'))// return 1;//杩斿洖1琛ㄧず鏄瀛楁瘝 // return 0;//杩斿洖0琛ㄧず涓嶆槸瀛楁瘝 return ( (c>='a' && c<='z') || (c>='A' && c<='Z'));} int isNumber(char c){ return (c>='0'&&c<='9');...
