foo.cc: In function 'int main()':
foo.cc:15:6: error: 'i' was not declared in this scope
 for (i = 0; i < len;i++) {
      ^
foo.cc:16:8: error: 'j' was not declared in this scope
   for (j = 0; j < len - i;j++) {
        ^
foo.cc:16:8: note: suggested alternative: 'jn'
   for (j = 0; j < len - i;j++) {
        ^
        jn
foo.cc:17:8: error: 'n' was not declared in this scope
    if (n[j] < n[j + 1]) {
        ^
foo.cc:17:8: note: suggested alternative: 'yn'
    if (n[j] < n[j + 1]) {
        ^
        yn
foo.cc:18:5: error: 'temp' was not declared in this scope
     temp = n[j];
     ^~~~
foo.cc:18:5: note: suggested alternative: 'time'
     temp = n[j];
     ^~~~
     time
foo.cc:27:1: error: expected '}' at end of input
 }
 ^

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