移除 C++ 中字串中的尾隨零
在此程式中,我們將看到如何在 C++ 中移除字串中的尾隨零。有時,某些字串可能包含尾隨零,例如“00023054”。執行此程式後,它將僅返回“23054”。初始零已被移除。
Input: A string with trailing zeros “000023500124” Output: “23500124”
演算法
Step 1: Get the string Step 2: Count number of trailing zeros n Step 3: Remove n characters from the beginning Step 4: return remaining string.
示例程式碼
#include<iostream> using namespace std; main() { string my_str = "000023500124"; int num = 0; cout << "Number with Trailing Zeros :" << my_str << endl; //count number of trailing zeros in the string while(my_str[num] == '0') { num++; } my_str.erase(0, num); //erase characters from 0 to i index cout << "Number without Trailing Zeros :" << my_str; }
輸出
Number with Trailing Zeros :000023500124 Number without Trailing Zeros :23500124
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