Accepted
/in/foo.cc: In function 'int main()':
/in/foo.cc:20:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(long long j=1;j<=t[z].size();j++){
~^~~~~~~~~~~~~
/in/foo.cc: In function 'int main()':
/in/foo.cc:20:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(long long j=1;j<=t[z].size();j++){
~^~~~~~~~~~~~~
