16 lines
174 B
Plaintext
16 lines
174 B
Plaintext
original valarray<int> vi
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[0,1,2,3,4,5,6,7,8,9]
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original valarray<bool> mask
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[1,0,1,1,1,0,0,1,1,0]
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vi[mask]
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[0,2,3,4,7,8]
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vi[mask] += vi[mask]
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[0,1,4,6,8,5,6,14,16,9]
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