#include <iostream>
#include <string>
#include <algorithm>
 
using namespace std;
 
int main() {
	string str = " texto com espaços em branco ";
	str.erase(remove(str.begin(), str.end(), ' '), str.end());
	cout << str;
}
 
//https://pt.stackoverflow.com/q/90623/101
				I2luY2x1ZGUgPGlvc3RyZWFtPgojaW5jbHVkZSA8c3RyaW5nPgojaW5jbHVkZSA8YWxnb3JpdGhtPgoKdXNpbmcgbmFtZXNwYWNlIHN0ZDsKCmludCBtYWluKCkgewoJc3RyaW5nIHN0ciA9ICIgdGV4dG8gY29tIGVzcGHDp29zIGVtIGJyYW5jbyAiOwoJc3RyLmVyYXNlKHJlbW92ZShzdHIuYmVnaW4oKSwgc3RyLmVuZCgpLCAnICcpLCBzdHIuZW5kKCkpOwoJY291dCA8PCBzdHI7Cn0KCi8vaHR0cHM6Ly9wdC5zdGFja292ZXJmbG93LmNvbS9xLzkwNjIzLzEwMQ==