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Suppose you are given the task of printing all characters in a string str that occur exactly once. For example, given the string "reader", you would print a and d because r and e are repeated. That is not easy, so let's solve a simpler problem first. Does the first character occur exactly once? Start with the algorithm from "Finding the First Match' in the "Common Loop Algorithms" section. You need to modify the algorithm so that you look for the first character, and you need to look for it in the rest of the string. Rearrange the following lines of code to produce a solution. Not all lines are useful. Cancel se Mouse: Drag/drop Keyboard: Grab/release spacebar (or Enter) Move Unused (( while (1found && position str.length()) if (ch "A" || ch "a") (found true; } if (ch target) (found true; } else { position++; } string ch str.substr(position, 1); int position - 01 int position 1; M if (Ifound) (cout << target << occurs once"; ) if (found) (cout << target << occurs once"; } if (found) (cout << ch << occurs once"; ) main.cpp #include #include using namespace std; int main() ( bool found false; string str cin >> stri string target str.substr(0, 1); Load default template... else { cout << target << occurs more than once"; } cout << endl; return 0;

Suppose you are given the task of printing all characters in a string str that occur exactly once. For example, given the string "reader", you would print a and d because r and e are repeated. That is not easy, so let's solve a simpler problem first. Does the first character occur exactly once? Start with the algorithm from "Finding the First Match' in the "Common Loop Algorithms" section. You need to modify the algorithm so that you look for the first character, and you need to look for it in the rest of the string. Rearrange the following lines of code to produce a solution. Not all lines are useful. Cancel se Mouse: Drag/drop Keyboard: Grab/release spacebar (or Enter) Move Unused (( while (1found && position str.length()) if (ch "A" || ch "a") (found true; } if (ch target) (found true; } else { position++; } string ch str.substr(position, 1); int position - 01 int position 1; M if (Ifound) (cout << target << occurs once"; ) if (found) (cout << target << occurs once"; } if (found) (cout << ch << occurs once"; ) main.cpp #include #include using namespace std; int main() ( bool found false; string str cin >> stri string target str.substr(0, 1); Load default template... else { cout << target << occurs more than once"; } cout << endl; return 0;

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Answer the given question with a proper explanation and step-by-step solution.

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Suppose you are given the task of printing all characters in a string str that occur exactly once. For example, given the string "reader", you would print a and d because r and e are repeated. That is not easy, so let's solve a simpler problem first. Does the first character occur exactly once? Start with the algorithm from "Finding the First Match" in the "Common Loop Algorithms" section. You need to modify the algorithm so that you look for the first character, and you need to look for it in the rest of the string. Rearrange the following lines of code to produce a solution. Not all lines are useful. Mouse: Drag/drop Keyboard: Grab/release Spacebar (or Enter) Move 100 Cancel Ese Unused ( while (1found && position <str.length()) if (ch "A" || ch "a") (found true; } if (ch target) (found true; } else { position++; } string ch str.substr(position, 1); int position - 01 int position = 1; if (Ifound) (cout << target << " occurs once"; ) if (found) (cout << target << occurs once"; } if (found) { cout << ch << occurs once"; } www. . main.cpp #include <iostream> #include <string> using namespace std; int main() ( } bool found false; string str; cin >> str; string targetstr.substr(0, 1); Load default template... else { cout << target << occurs more than once"; } cout << endl; return 0;
Transcribed Image Text:Suppose you are given the task of printing all characters in a string str that occur exactly once. For example, given the string "reader", you would print a and d because r and e are repeated. That is not easy, so let's solve a simpler problem first. Does the first character occur exactly once? Start with the algorithm from "Finding the First Match" in the "Common Loop Algorithms" section. You need to modify the algorithm so that you look for the first character, and you need to look for it in the rest of the string. Rearrange the following lines of code to produce a solution. Not all lines are useful. Mouse: Drag/drop Keyboard: Grab/release Spacebar (or Enter) Move 100 Cancel Ese Unused ( while (1found && position <str.length()) if (ch "A" || ch "a") (found true; } if (ch target) (found true; } else { position++; } string ch str.substr(position, 1); int position - 01 int position = 1; if (Ifound) (cout << target << " occurs once"; ) if (found) (cout << target << occurs once"; } if (found) { cout << ch << occurs once"; } www. . main.cpp #include <iostream> #include <string> using namespace std; int main() ( } bool found false; string str; cin >> str; string targetstr.substr(0, 1); Load default template... else { cout << target << occurs more than once"; } cout << endl; return 0;
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