Main.cc: In function 'int main()':
Main.cc:11:3: error: expected ';' before 'for'
for(int i=1;i<=n;i++){
^
Main.cc:11:15: error: 'i' was not declared in this scope
for(int i=1;i<=n;i++){
^
Main.cc:5:10: warning: unused variable 't' [-Wunused-variable]
int k,n,t;
^