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| 1 | +/* |
| 2 | + written by Pankaj Kumar. |
| 3 | + country:-INDIA |
| 4 | +*/ |
| 5 | +typedef long long ll ; |
| 6 | +const ll INF=1e18; |
| 7 | +const ll mod1=1e9+7; |
| 8 | +const ll mod2=998244353; |
| 9 | +//Add main code here |
| 10 | + |
| 11 | +class MyCircularDeque { |
| 12 | +public: |
| 13 | + list<int> v; |
| 14 | + int count; |
| 15 | + MyCircularDeque(int k) { |
| 16 | + v.clear(); |
| 17 | + count=k; |
| 18 | + } |
| 19 | + |
| 20 | + bool insertFront(int value) { |
| 21 | + if(v.size()!=count){ |
| 22 | + v.push_front(value); |
| 23 | + return true; |
| 24 | + } |
| 25 | + else{ |
| 26 | + return false; |
| 27 | + } |
| 28 | + } |
| 29 | + |
| 30 | + bool insertLast(int value) { |
| 31 | + if (v.size() != count) |
| 32 | + { |
| 33 | + v.push_back(value); |
| 34 | + return true; |
| 35 | + } |
| 36 | + else |
| 37 | + { |
| 38 | + return false; |
| 39 | + } |
| 40 | + } |
| 41 | + |
| 42 | + bool deleteFront() { |
| 43 | + if (v.size() != 0) |
| 44 | + { |
| 45 | + v.pop_front(); |
| 46 | + return true; |
| 47 | + } |
| 48 | + else |
| 49 | + { |
| 50 | + return false; |
| 51 | + } |
| 52 | + } |
| 53 | + |
| 54 | + bool deleteLast() { |
| 55 | + if (v.size() != 0) |
| 56 | + { |
| 57 | + v.pop_back(); |
| 58 | + return true; |
| 59 | + } |
| 60 | + else |
| 61 | + { |
| 62 | + return false; |
| 63 | + } |
| 64 | + } |
| 65 | + |
| 66 | + int getFront() { |
| 67 | + if (v.size() != 0) |
| 68 | + { |
| 69 | + return v.front(); |
| 70 | + } |
| 71 | + else |
| 72 | + { |
| 73 | + return -1; |
| 74 | + } |
| 75 | + } |
| 76 | + |
| 77 | + int getRear() { |
| 78 | + if (v.size() != 0) |
| 79 | + { |
| 80 | + return v.back(); |
| 81 | + } |
| 82 | + else |
| 83 | + { |
| 84 | + return -1; |
| 85 | + } |
| 86 | + } |
| 87 | + |
| 88 | + bool isEmpty() { |
| 89 | + if(v.size()==0){ |
| 90 | + return true; |
| 91 | + } |
| 92 | + else{ |
| 93 | + return false; |
| 94 | + } |
| 95 | + } |
| 96 | + |
| 97 | + bool isFull() { |
| 98 | + if (v.size() == count) |
| 99 | + { |
| 100 | + return true; |
| 101 | + } |
| 102 | + else |
| 103 | + { |
| 104 | + return false; |
| 105 | + } |
| 106 | + } |
| 107 | +}; |
| 108 | + |
| 109 | +/** |
| 110 | + * Your MyCircularDeque object will be instantiated and called as such: |
| 111 | + * MyCircularDeque* obj = new MyCircularDeque(k); |
| 112 | + * bool param_1 = obj->insertFront(value); |
| 113 | + * bool param_2 = obj->insertLast(value); |
| 114 | + * bool param_3 = obj->deleteFront(); |
| 115 | + * bool param_4 = obj->deleteLast(); |
| 116 | + * int param_5 = obj->getFront(); |
| 117 | + * int param_6 = obj->getRear(); |
| 118 | + * bool param_7 = obj->isEmpty(); |
| 119 | + * bool param_8 = obj->isFull(); |
| 120 | + */ |
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