Compiler output
prog.c: In function 'main':
prog.c:40:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
prog.c:69:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
prog.c:111:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
prog.c:123:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
prog.c:135:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
