39 lines
		
	
	
		
			881 B
		
	
	
	
		
			C++
		
	
	
	
			
		
		
	
	
			39 lines
		
	
	
		
			881 B
		
	
	
	
		
			C++
		
	
	
	
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// <queue>
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// void pop();
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#include <queue>
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#include <cassert>
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int main(int, char**)
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{
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    std::queue<int> q;
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    assert(q.size() == 0);
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    q.push(1);
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    q.push(2);
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    q.push(3);
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    assert(q.size() == 3);
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    assert(q.front() == 1);
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    assert(q.back() == 3);
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    q.pop();
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    assert(q.size() == 2);
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    assert(q.front() == 2);
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    assert(q.back() == 3);
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    q.pop();
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    assert(q.size() == 1);
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    assert(q.front() == 3);
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    assert(q.back() == 3);
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    q.pop();
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    assert(q.size() == 0);
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  return 0;
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}
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