8000 Create 11723.cpp · hackerman91/basic-algo-lecture@94e3653 · GitHub
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Create 11723.cpp
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‎Appendix C/solutions/11723.cpp

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// Authored by : BaaaaaaaaaaarkingDog
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// Co-authored by : -
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// http://boj.kr/5d6d3f1b55a04ea2a5bab1e7b9e28684
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#include <bits/stdc++.h>
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using namespace std;
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int state;
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int main(){
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ios::sync_with_stdio(0);
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cin.tie(0);
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int m;
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cin >> m;
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while(m--){
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string com;
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int x;
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cin >> com;
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if(com == "add"){
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cin >> x;
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state |= (1 << (x-1));
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}
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else if(com == "remove"){
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cin >> x;
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state &= (~(1 << (x-1)));
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}
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else if(com == "check"){
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cin >> x;
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cout << ((state >> (x-1)) & 1) << '\n';
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}
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else if(com == "toggle"){
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cin >> x;
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state ^= (1 << (x-1));
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}
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else if(com == "all"){
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state = 0xfffff;
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}
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else{ // empty
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state = 0;
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}
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}
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}

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