Nothing

```
# Copyright (c) 2019, Adrian Dusa
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, in whole or in part, are permitted provided that the
# following conditions are met:
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# * The names of its contributors may NOT be used to endorse or promote products
# derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL ADRIAN DUSA BE LIABLE FOR ANY
# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
`writeSolution` <-
function(sol, pic) {
solution <- output <- list()
row.matrix <- matrix(FALSE, nrow = nrow(pic), ncol = ncol(sol))
rownames(row.matrix) <- rownames(pic)
for (i in seq(ncol(sol))) {
aa <- sol[, i]
aa <- aa[!is.na(aa)]
row.matrix[aa, i] <- TRUE
}
ess.PIs <- rownames(pic)[rowSums(row.matrix) == ncol(row.matrix)]
for (i in seq(ncol(sol))) {
aa <- sol[, i]
aa <- aa[!is.na(aa)]
solution[[i]] <- as.vector(aa)
}
output[[1]] <- solution
output[[2]] <- as.vector(ess.PIs)
return(output)
}
```

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