scor2.cpp: In function 'void dfs(int)': scor2.cpp:26: warning: comparison between signed and unsigned integer expressions scor2.cpp:25: warning: unused variable 'val' scor2.cpp: In function 'int main()': scor2.cpp:39: warning: unused variable 'm' scor2.cpp:39: warning: unused variable 'k' scor2.cpp:39: warning: unused variable 't' scor2.cpp:39: warning: unused variable 'minim' scor2.cpp:39: warning: unused variable 'maxim' scor2.cpp:39: warning: unused variable 'suma' scor2.cpp:39: warning: unused variable 'nr_x' scor2.cpp:39: warning: unused variable 'nr_elem'