nonogram.cpp: In function 'std::vector<std::vector<int> > SolveNonogram(int, int, std::vector<std::vector<int> >, std::vector<std::vector<int> >)':
nonogram.cpp:13:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i=0,j=0;i<Cclue[0].size();i++) {
~^~~~~~~~~~~~~~~~
nonogram.cpp:19:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i=0;i<Rclue.size();i++) {
~^~~~~~~~~~~~~
nonogram.cpp:21:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int k1=0;k1<Rclue[i].size();k1++) {
~~^~~~~~~~~~~~~~~~