题目链接：http://poj.org/problem?id=1298
题目大意：
字母映射。太简单了。不说了。感脚都不好意思在博客里面写……水题一次最多切3道，再多就没意思了……也没有意义……
题目思路：
为了学习ＳＴＬ，用的ｍａｐ。
1 #include <iostream> 2 #include <cstdio> 3 #include <cstdlib> 4 #include <cstring> 5 #include <cctype> 6 #include <set> 7 #include <map> 8 #include <vector> 9 #include <stack> 10 #include <queue> 11 #include <cmath> 12 #include <algorithm> 13 #define lson l, m, rt<<1 14 #define rson m+1, r, rt<<1|1 15 using namespace std; 16 typedef long long int LL; 17 const int MAXN = 0x3f3f3f3f; 18 const int MIN = -0x3f3f3f3f; 19 const double eps = 1e-9; 20 const int dir[8][2] = {{0,1},{1,0},{0,-1},{-1,0},{-1,1}, 21 {1,1},{1,-1},{-1,-1}}; 22 map<char, char> mymap; 23 string a, b, c; 24 char aa[10000]; 25 int main(void){ 26 #ifndef ONLINE_JUDGE 27 freopen("1298.in", "r", stdin); 28 #endif 29 for (int i = 0; i < 26; ++i){ 30 if (i <= 4) 31 mymap[i+'A'] = 'A' + 21 + i; 32 else mymap[i+'A'] = i +'A'-5; 33 } 34 while (cin >> a){ 35 if (a == "ENDOFINPUT") break; 36 getchar(); gets(aa); int len = strlen(aa); 37 for (int i = 0; i < len; ++i){ 38 if (isalpha(aa[i])){ 39 printf("%c", mymap[aa[i]]); 40 } 41 else printf("%c", aa[i]); 42 } printf("\n"); 43 cin >> b; 44 } 45 46 return 0; 47 }
在ＯＪ上看到了自己以前写的代码，感脚好精简～
1 # include <stdio.h> 2 # include <string.h> 3 4 char a[201]; 5 6 int main(void) 7 { 8 char endall[] = "ENDOFINPUT"; 9 char start[10]; /* = "START"; */ 10 char end[4]; /* = "END"; */ 11 int n = 101; 12 int i; 13 char c; 14 15 while (n--) 16 { 17 scanf("%s", start); 18 if (strcmp(start, endall) == 0) 19 break; 20 i = 0; 21 getchar(); 22 while ((c = getchar()) != '\n') 23 { 24 a[i] = c; 25 i++; 26 } 27 a[i] = '\0'; 28 for (i = 0; i < strlen(a); i++) 29 { 30 if (a[i] >= 'A' && a[i] <= 'E') 31 a[i] = a[i] + 21; 32 else if (a[i] >= 'F' && a[i] <= 'Z') 33 a[i] = a[i] - 5; 34 } 35 printf("%s\n", a); 36 scanf("%s", end); 37 } 38 39 return 0; 40 }
原来自己以前的代码风格曾经这么精悍，哈哈
