运行 ID: 31721

Main.cc:13:2: error: expected unqualified-id before ‘while’
  while(m--){
  ^~~~~
Main.cc:19:3: error: expected unqualified-id before ‘for’
   for(int i=1;i<=n;i++){
   ^~~
Main.cc:19:15: error: ‘i’ does not name a type
   for(int i=1;i<=n;i++){
               ^
Main.cc:19:20: error: ‘i’ does not name a type
   for(int i=1;i<=n;i++){
                    ^
Main.cc:23:3: error: expected unqualified-id before ‘for’
   for(int i=1;i<=n;i++){
   ^~~
Main.cc:23:15: error: ‘i’ does not name a type
   for(int i=1;i<=n;i++){
               ^
Main.cc:23:20: error: ‘i’ does not name a type
   for(int i=1;i<=n;i++){
                    ^