#|ZOJ1151 Word Reversal【堆栈+字符流+字符串流】
Word Reversal
Time Limit: 2 Seconds Memory Limit: 65536 KB
For each list of words, output a line with each word reversed without changing the order of the words.
This problem contains multiple test cases!
The first line of a multiple input is an integer N, then a blank line followed by N input blocks. Each input block is in the format indicated in the problem description. There is a blank line between input blocks.
The output format consists of N output blocks. There is a blank line between output blocks.
Input
You will be given a number of test cases. The first line contains a positive integer indicating the number of cases to follow. Each case is given on a line containing a list of words separated by one space, and each word contains only uppercase and lowercase letters.
Output
【#|ZOJ1151 Word Reversal【堆栈+字符流+字符串流】】For each test case, print the output on one line.
Sample Input
1
3
I am happy today
To be or not to be
I want to win the practice contest
Sample Output
I ma yppah yadot
oT eb ro ton ot eb
I tnaw ot niw eht ecitcarp tsetnoc
Source: East Central North America 1999, Practice
问题链接:ZOJ1151 Word Reversal
问题简述:(略)
问题分析:
这是一个简单的文本处理问题。用C++实现的话,可以使用字符串留来处理。正道还是用字符流和堆栈来解决。
程序说明:(略)
参考链接:(略)
题记:(略)
AC的C语言程序如下:
/* ZOJ1151 Word Reversal */#include #define MAXSTACK 1024char stack[MAXSTACK];
int pstack;
void push(char c)
{
stack[pstack++] = c;
}char pop()
{
return stack[--pstack];
}int main(void)
{
int t, line, i;
char c;
scanf("%d", &t);
while(t--) {
scanf("%d", &line);
getchar();
pstack = 0;
for(i=1;
i<=line;
i++) {
c = getchar();
while(c != '\n') {
if(c == ' ') {
while(pstack)
putchar(pop());
putchar(c);
} else
push(c);
c = getchar();
}while(pstack)
putchar(pop());
putchar('\n');
}if(t) putchar('\n');
}return 0;
}
AC的C++语言程序如下:
/* ZOJ1151 Word Reversal */#include
#include
#include using namespace std;
void reverse(string& s)
{
string t;
stringstream ss(s);
bool flag = false;
while(ss >> t) {
if(flag) cout << ' ';
flag = true;
for(int i = (int)t.size() - 1;
i >= 0;
i--)
cout << t[i];
}
cout << endl;
}int main()
{
int t, n;
cin >> t;
while(t--) {
cin >> n;
cin.get();
string s;
for(int i = 1;
i <= n;
i++) {
getline(cin, s);
reverse(s);
}
if(t) cout << endl;
}return 0;
}
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