Main.cc: In function 'int main()':
Main.cc:7:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i=0;is.find(char(i))){
^
Main.cc:18:8: error: invalid operands of types 'int [125]' and 'double' to binary 'operator=='
if(a==2e5){
^