Job 20404

Compiler output

prog.cpp: In function 'void solve()':
prog.cpp:37:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i < digs.size(); ++i) {
                    ^
prog.cpp:41:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for (int j = i; j+1 < digs.size(); ++j) {
                        ^

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