分析:很久以前,在《K&R》上面碰到過這個題,只不過比這個復雜一點。。。。
也是水題,沒什麼說的,注意一下細節,比如輸出的格式等,還有就是,一開始用的for循環,每輸入一行結束後就直接打印,好郁悶^~_~^
Description
Write a program to read four lines of upper case (i.e., all CAPITAL LETTERS) text input (no more than 72 characters per line) from the input file and print a vertical histogram that shows how many times each letter (but not blanks, digits, or punctuation) appears in the all-upper-case input. Format your output exactly as shown.Input
* Lines 1..4: Four lines of upper case text, no more than 72 characters per line.Output
* Lines 1..??: Several lines with asterisks and spaces followed by one line with the upper-case alphabet separated by spaces. Do not print unneeded blanks at the end of any line. Do not print any leading blank lines.Sample Input
THE QUICK BROWN FOX JUMPED OVER THE LAZY DOG. THIS IS AN EXAMPLE TO TEST FOR YOUR HISTOGRAM PROGRAM. HELLO!
Sample Output
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
#include#include #include #include using namespace std; int main() { int len,i,j,maxhigh=0; string s; int c[26]; memset(c,0,sizeof(c)); while (cin>>s) { len=s.length(); for(i=0;i =65 && s[i]<=90) ++c[s[i]-'A']; } for(i=0;i<26;i++) if(maxhigh 0;i--) { for(j=0;j<26;j++) if(c[j]>=i) printf("* "); else printf(" "); printf("\n"); } for(i=0;i<26;i++) { if(i>0) printf(" "); printf("%c",i+'A'); } printf("\n"); return 0; }
Description
Write a program to read four lines of upper case (i.e., all CAPITAL LETTERS) text input (no more than 72 characters per line) from the input file and print a vertical histogram that shows how many times each letter (but not blanks, digits, or punctuation) appears in the all-upper-case input. Format your output exactly as shown.Input
* Lines 1..4: Four lines of upper case text, no more than 72 characters per line.Output
* Lines 1..??: Several lines with asterisks and spaces followed by one line with the upper-case alphabet separated by spaces. Do not print unneeded blanks at the end of any line. Do not print any leading blank lines.Sample Input
THE QUICK BROWN FOX JUMPED OVER THE LAZY DOG. THIS IS AN EXAMPLE TO TEST FOR YOUR HISTOGRAM PROGRAM. HELLO!
Sample Output
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * A B C D E F G H I J K L M N O P Q R S T U V W X Y Z