注意三种情况:
1.开头结尾的-,例:-abc-- 2.-两侧必须同为小写字母或同为数字 例;A-a 3.对数字不能进行大小写转换
#include <iostream> #include <stdio.h> #include <algorithm> #include <string> #include <cmath> #include <algorithm> #define For(i, j, n) for (int i = j; i <= n; ++i) using namespace std; template <typename T> inline T read() { T x = 0; int f = 1; char ch = getchar(); while (ch < '0' || ch > '9') { if (ch == '-') f = -1; ch = getchar(); } while (ch >= '0' && ch <= '9') { x = x * 10 + ch - '0'; ch = getchar(); } return x * f; } int p[4]; string _input, _ans; bool in_pos[105]; string _produce(char left, char right) { string res = ""; bool flag = true; int _offset = 0; if (left == right || left > right) { res.append(1, '-'); return res; } switch (p[1]) { case 1: break; case 2: if(!isdigit(left)) _offset = -32; break; default:; } if (flag) { for (char i = left + 1; i < right; i++) res.append(p[2], i + _offset); } if (p[1] == 3) res.replace(0, res.length(), string(res.length(), '*')); if (p[3] == 2) reverse(res.begin(), res.end()); return res; } bool check(string str, int pos) { if (pos < 1) return false; return (str[pos] == '-') && ((isdigit(str[pos - 1]) && isdigit(str[pos + 1])) | (isalpha(str[pos + 1]) && isalpha(str[pos - 1]))); } int main() { for (int i = 1; i <= 3; i++) cin >> p[i]; cin >> _input; _ans = ""; for (int i = 0; i < _input.length(); i++) { if (check(_input, i)) { _ans += _produce(_input[i - 1], _input[i + 1]); } else _ans.append(1, _input[i]); } cout << _ans << endl; return 0; }
标签:ch,int,res,pos,NOIP2007,字符串,input,include,P1098 From: https://www.cnblogs.com/smartljy/p/18260141