// string comparisons #include <iostream> #include <vector> int main () { std::string foo = "alpha"; std::string bar = "beta"; if (foo==bar) std::cout << "foo and bar are equal\n"; if (foo!=bar) std::cout << "fo
we want to find a positive integer k, if it exists, such that the sum of the digits of n taken to the successive powers of p is equal to k * n. In other words: Is there an integer k such as : (a ^ p + b ^ (p+1) + c ^(p+2) + d ^ (p+3) + ...) = n * ...
Given a positive integer n written as abcd... (a, b, c, d... being digits) and a positive integer p we want to find a positive integer k, if it exists, such that the sum of the digits of n taken to the successive powers of p is equal to k * n. In other words: Is there...
此时输出结果应为mynameis,然而输出结果为mynameis口(空字符标志打不出来); 所以用字符数组给string赋值时要用assign()
* string equal to this String object as determined by * the {@link#equals(Object)} method, then the string from the pool is * returned. Otherwise, this String object is added to the * pool and a reference to this String object is returned. * * It follows that for any two strings...
* string equal to this {@code String} object as determined by * the {@link #equals(Object)} method, then the string from the pool is * returned. Otherwise, this {@code String} object is added to the * pool and a reference to this {@code String} object is returned. ...
* string equal to thisStringobject as determined by * the {@link #equals(Object)} method, then the string from the pool is * returned. Otherwise, thisStringobject is added to the * pool and a reference to thisStringobject is returned. ** It follows that for any two stringssand...
In this example, we compare with one string with the empty string.Open Compiler #include <iostream> #include <string> using namespace std; int main() { string X1 = "hello"; string X2 = ""; int result = X1.compare(X2); if (result == 0) { cout << " Both are equal " << ...
c++ -O -pipe -march=pentiumpro tt.cpp -o tt -bash-2.05b$ ./tt Please input your name:Hero you are not wende! Hero , Welcome to China! How are you? Hero , Welcome to China! 有了这些操作符,在STL中仿函数都可以直接使用string作为参数,例如 less, great, equal_to 等,因此在把string作为...
<< endl; // First member function: comparison between left-side object // of type basic_string & right-side object of type basic_string if ( s1 == s2 ) cout << "The strings s1 & s2 are equal." << endl; else cout << "The strings s1 & s2 are not equal." << endl; // Se...