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# include <iostream>
# include <boost/lexical_cast.hpp>
int main()
{
std::string s = "123";
std::cout << boost::lexical_cast<int>(s) << std::endl;
return 0;
}
#include <stdio.h>
#include<conio.h>
int main()
{
char a[100];
gets(a);
for(int i=0;a[i]!='\0';i++)
{
if(a[i]!=' ')
printf("%d\n",a[i]-'0');
}
getch();
return 0;
}
string str="123";
stringstream ss(str);
int n;
ss>>n;