C++ std::replace for array














































C++ std::replace for array



/**C++ std::replace for array**/
/** This algorithm is about to replace any number from a array with a new value. This is a simple STL base algorithm. This replace() function is define in 'algorithm' headerfile. Function Template: replace(initial_ndex, last_index, old_value, new_value); initial_index = it indicates base index of the array; last_index = it indicates last index of the array; old_value = it indicates old value of the array the need to replace; new_value = it indicates a new value that will be inserted in place of old value; **/ Algorithm: #include<bits/stdc++.h> #include<algorithm> using namespace std; int main () { int arr[]={10,20,10,80,50,10,46,51,26,10,50,64}; int n=sizeof(arr)/sizeof(arr[0]); //Elements before calling replace() function; cout << "Elements before calling replace() function: " << endl; for(int i=0;i<12;i++) cout << arr[i] << " "; cout << '\n'; //Calling replace() function; replace(arr, arr+n, 10,5); //Elements after calling replace_copy function; cout << "Elements after calling replace() function: " << endl; for(int i=0;i<12;i++) cout << arr[i] << " "; return 0; } /** Output: Elements before calling replace() function: 10 20 10 80 50 10 46 51 26 10 50 64 Elements after calling replace() function: 5 20 5 80 50 5 46 51 26 5 50 64 **/

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