Main.cc: In function 'int main()':
Main.cc:10:5: error: expected initializer before 'for'
for(int i=1;i<=50;i++){
^
Main.cc:10:17: error: 'i' was not declared in this scope
for(int i=1;i<=50;i++){
^
Main.cc:9:9: warning: unused variable 'a' [-Wunused-variable]
int a[150],b[150]
^