Which lines contain errors?
#include <iostream>
using namespace std;

template <class X, class Y> void f(X,Y) {
void main(void) { 
    f(1,1);                 //1
    f<int ,int>('c', 1);    //2
    f<string>("str",1.1);   //3
For lines // 1 and // 3, the data type in the function is automatically determined by the compiler based on the types of function parameters. For line // 2, char is converted to int

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