foo.cc:3:1: error: expected identifier before 'int'
    3 | int main()
      | ^~~
foo.cc:2:16: error: expected ';' before 'int'
    2 | using namespace
      |                ^
      |                ;
    3 | int main()
      | ~~~             
foo.cc: In function 'int main()':
foo.cc:7:2: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    7 |  cin<<xmin<<xmax;
      |  ^~~
      |  std::cin
In file included from foo.cc:1:
/usr/include/c++/9/iostream:60:18: note: 'std::cin' declared here
   60 |   extern istream cin;  /// Linked to standard input
      |                  ^~~
foo.cc:8:9: warning: left operand of comma operator has no effect [-Wunused-value]
    8 |  if(xmin>=xmax,xmin++)
      |     ~~~~^~~~~~
foo.cc:10:16: error: lvalue required as left operand of assignment
   10 |    xmin/100000=x6;
      |                ^~
foo.cc:8:2: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
    8 |  if(xmin>=xmax,xmin++)
      |  ^~
foo.cc:11:10: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   11 |          if(x6=0)
      |          ^~
foo.cc:11:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   11 |          if(x6=0)
      |             ~~^~
foo.cc:12:7: warning: statement has no effect [-Wunused-value]
   12 |     n0+1;
      |     ~~^~
foo.cc:13:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   13 |          if(x6=1)
      |             ~~^~
foo.cc:14:7: warning: statement has no effect [-Wunused-value]
   14 |     n1+1;
      |     ~~^~
foo.cc:15:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   15 |          if(x6=2)
      |             ~~^~
foo.cc:16:7: warning: statement has no effect [-Wunused-value]
   16 |     n2+1;
      |     ~~^~
foo.cc:17:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   17 |          if(x6=3)
      |             ~~^~
foo.cc:18:7: warning: statement has no effect [-Wunused-value]
   18 |     n3+1;
      |     ~~^~
foo.cc:19:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   19 |          if(x6=4)
      |             ~~^~
foo.cc:20:7: warning: statement has no effect [-Wunused-value]
   20 |     n4+1;
      |     ~~^~
foo.cc:21:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   21 |          if(x6=5)
      |             ~~^~
foo.cc:22:7: warning: statement has no effect [-Wunused-value]
   22 |     n5+1;
      |     ~~^~
foo.cc:23:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   23 |          if(x6=6)
      |             ~~^~
foo.cc:24:7: warning: statement has no effect [-Wunused-value]
   24 |     n6+1;
      |     ~~^~
foo.cc:25:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   25 |          if(x6=7)
      |             ~~^~
foo.cc:26:7: warning: statement has no effect [-Wunused-value]
   26 |     n7+1;
      |     ~~^~
foo.cc:27:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   27 |          if(x6=8)
      |             ~~^~
foo.cc:28:7: warning: statement has no effect [-Wunused-value]
   28 |     n8+1;
      |     ~~^~
foo.cc:29:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   29 |          if(x6=9)
      |             ~~^~
foo.cc:30:7: warning: statement has no effect [-Wunused-value]
   30 |     n9+1;
      |     ~~^~
foo.cc:32:15: error: lvalue required as left operand of assignment
   32 |    xmin/10000=x5;
      |               ^~
foo.cc:33:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   33 |          if(x5=0)
      |             ~~^~
foo.cc:34:7: warning: statement has no effect [-Wunused-value]
   34 |     n0+1;
      |     ~~^~
foo.cc:35:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   35 |          if(x5=1)
      |             ~~^~
foo.cc:36:7: warning: statement has no effect [-Wunused-value]
   36 |     n1+1;
      |     ~~^~
foo.cc:37:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   37 |          if(x5=2)
      |             ~~^~
foo.cc:38:7: warning: statement has no effect [-Wunused-value]
   38 |     n2+1;
      |     ~~^~
foo.cc:39:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   39 |          if(x5=3)
      |             ~~^~
foo.cc:40:7: warning: statement has no effect [-Wunused-value]
   40 |     n3+1;
      |     ~~^~
foo.cc:41:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   41 |          if(x5=4)
      |             ~~^~
foo.cc:42:6: warning: statement has no effect [-Wunused-value]
   42 |     4+1;
      |     ~^~
foo.cc:43:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   43 |          if(x5=5)
      |             ~~^~
foo.cc:44:7: warning: statement has no effect [-Wunused-value]
   44 |     n5+1;
      |     ~~^~
foo.cc:45:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   45 |          if(x5=6)
      |             ~~^~
foo.cc:46:7: warning: statement has no effect [-Wunused-value]
   46 |     n6+1;
      |     ~~^~
foo.cc:47:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   47 |          if(x5=7)
      |             ~~^~
foo.cc:48:7: warning: statement has no effect [-Wunused-value]
   48 |     n7+1;
      |     ~~^~
foo.cc:49:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   49 |          if(x5=8)
      |             ~~^~
foo.cc:50:7: warning: statement has no effect [-Wunused-value]
   50 |     n8+1;
      |     ~~^~
foo.cc:51:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   51 |          if(x5=9)
      |             ~~^~
foo.cc:52:7: warning: statement has no effect [-Wunused-value]
   52 |     n9+1;
      |     ~~^~
foo.cc:54:14: error: lvalue required as left operand of assignment
   54 |    xmin/1000=x4;
      |              ^~
foo.cc:55:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   55 |          if(x4=0)
      |             ~~^~
foo.cc:56:7: warning: statement has no effect [-Wunused-value]
   56 |     n0+1;
      |     ~~^~
foo.cc:57:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   57 |          if(x4=1)
      |             ~~^~
foo.cc:58:7: warning: statement has no effect [-Wunused-value]
   58 |     n1+1;
      |     ~~^~
foo.cc:59:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   59 |          if(x4=2)
      |             ~~^~
foo.cc:60:7: warning: statement has no effect [-Wunused-value]
   60 |     n2+1;
      |     ~~^~
foo.cc:61:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   61 |          if(x4=3)
      |             ~~^~
foo.cc:62:7: warning: statement has no effect [-Wunused-value]
   62 |     n3+1;
      |     ~~^~
foo.cc:63:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   63 |          if(x4=4)
      |             ~~^~
foo.cc:64:7: warning: statement has no effect [-Wunused-value]
   64 |     n4+1;
      |     ~~^~
foo.cc:65:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   65 |          if(x4=5)
      |             ~~^~
foo.cc:66:10: warning: statement has no effect [-Wunused-value]
   66 |        n5+1;
      |        ~~^~
foo.cc:67:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   67 |          if(x4=6)
      |             ~~^~
foo.cc:68:7: warning: statement has no effect [-Wunused-value]
   68 |     n6+1;
      |     ~~^~
foo.cc:69:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   69 |          if(x4=7)
      |             ~~^~
foo.cc:70:7: warning: statement has no effect [-Wunused-value]
   70 |     n7+1;
      |     ~~^~
foo.cc:71:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   71 |          if(x4=8)
      |             ~~^~
foo.cc:72:7: warning: statement has no effect [-Wunused-value]
   72 |     n8+1;
      |     ~~^~
foo.cc:73:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   73 |          if(x4=9)
      |             ~~^~
foo.cc:74:7: warning: statement has no effect [-Wunused-value]
   74 |     n9+1;
      |     ~~^~
foo.cc:76:13: error: lvalue required as left operand of assignment
   76 |    xmin/100=x3;
      |             ^~
foo.cc:77:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   77 |          if(x3=0)
      |             ~~^~
foo.cc:78:7: warning: statement has no effect [-Wunused-value]
   78 |     n0+1;
      |     ~~^~
foo.cc:79:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   79 |          if(x3=1)
      |             ~~^~
foo.cc:80:7: warning: statement has no effect [-Wunused-value]
   80 |     n1+1;
      |     ~~^~
foo.cc:81:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   81 |          if(x3=2)
      |             ~~^~
foo.cc:82:7: warning: statement has no effect [-Wunused-value]
   82 |     n2+1;
      |     ~~^~
foo.cc:83:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   83 |          if(x3=3)
      |             ~~^~
foo.cc:84:7: warning: statement has no effect [-Wunused-value]
   84 |     n3+1;
      |     ~~^~
foo.cc:85:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   85 |          if(x3=4)
      |             ~~^~
foo.cc:86:7: warning: statement has no effect [-Wunused-value]
   86 |     n4+1;
      |     ~~^~
foo.cc:87:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   87 |          if(x3=5)
      |             ~~^~
foo.cc:88:7: warning: statement has no effect [-Wunused-value]
   88 |     35+1;
      |     ~~^~
foo.cc:89:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   89 |          if(x3=6)
      |             ~~^~
foo.cc:90:7: warning: statement has no effect [-Wunused-value]
   90 |     n6+1;
      |     ~~^~
foo.cc:91:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   91 |          if(x3=7)
      |             ~~^~
foo.cc:92:7: warning: statement has no effect [-Wunused-value]
   92 |     n7+1;
      |     ~~^~
foo.cc:93:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   93 |          if(x3=8)
      |             ~~^~
foo.cc:94:7: warning: statement has no effect [-Wunused-value]
   94 |     n8+1;
      |     ~~^~
foo.cc:95:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   95 |          if(x3=9)
      |             ~~^~
foo.cc:96:7: warning: statement has no effect [-Wunused-value]
   96 |     n9+1;
      |     ~~^~
foo.cc:98:12: error: lvalue required as left operand of assignment
   98 |    xmin/10=x2;
      |            ^~
foo.cc:99:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   99 |          if(x2=0)
      |             ~~^~
foo.cc:100:7: warning: statement has no effect [-Wunused-value]
  100 |     n0+1;
      |     ~~^~
foo.cc:101:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
  101 |          if(x2=1)
      |             ~~^~
foo.cc:102:7: warning: statement has no effect [-Wunused-value]
  102 |     n1+1;
      |     ~~^~
foo.cc:103:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
  103 |          if(x2=2)
      |             ~~^~
foo.cc:104:7: warning: statement has no effect [-Wunused-value]
  104 |     n2+1;
      |     ~~^~
foo.cc:105:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
  105 |          if(x2=3)
      |             ~~^~
foo.cc:106:7: warning: statement has no effect [-Wunused-value]
  106 |     n3+1;
      |     ~~^~
foo.cc:107:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
  107 |          if(x2=4)
      |             ~~^~
foo.cc:108:7: warning: statement has no effect [-Wunused-value]
  108 |     n4+1;
      |     ~~^~
foo.cc:109:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
  109 |          if(x2=5)
      |             ~~^~
foo.cc:110:7: warning: statement has no effect [-Wunused-value]
  110 |     n5+1;
      |     ~~^~
foo.cc:111:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
  111 |          if(x2=6)
      |             ~~^~
foo.cc:112:7: warning: statement has no effect [-Wunused-value]
  112 |     n6+1;
      |     ~~^~
foo.cc:113:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
  113 |          if(x2=7)
      |             ~~^~
foo.cc:114:7: warning: statement has no effect [-Wunused-value]
  114 |     n7+1;
      |     ~~^~
foo.cc:115:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
  115 |          if(x2=8)
      |             ~~^~
foo.cc:116:7: warning: statement has no effect [-Wunused-value]
  116 |     n8+1;
      |     ~~^~
foo.cc:117:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
  117 |          if(x2=9)
      |             ~~^~
foo.cc:118:7: warning: statement has no effect [-Wunused-value]
  118 |     n9+1;
      |     ~~^~
foo.cc:120:11: error: lvalue required as left operand of assignment
  120 |    xmin/1=x1;
      |           ^~
foo.cc:121:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
  121 |          if(x1=0)
      |             ~~^~
foo.cc:122:7: warning: statement has no effect [-Wunused-value]
  122 |     n0+1;
      |     ~~^~
foo.cc:123:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
  123 |          if(x1=1)
      |             ~~^~
foo.cc:124:7: warning: statement has no effect [-Wunused-value]
  124 |     n1+1;
      |     ~~^~
foo.cc:125:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
  125 |          if(x1=2)
      |             ~~^~
foo.cc:126:7: warning: statement has no effect [-Wunused-value]
  126 |     n2+1;
      |     ~~^~
foo.cc:127:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
  127 |          if(x1=3)
      |             ~~^~
foo.cc:128:7: warning: statement has no effect [-Wunused-value]
  128 |     n3+1;
      |     ~~^~
foo.cc:129:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
  129 |          if(x1=4)
      |             ~~^~
foo.cc:130:7: warning: statement has no effect [-Wunused-value]
  130 |     n4+1;
      |     ~~^~
foo.cc:131:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
  131 |          if(x1=5)
      |             ~~^~
foo.cc:132:7: warning: statement has no effect [-Wunused-value]
  132 |     n5+1;
      |     ~~^~
foo.cc:133:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
  133 |          if(x1=6)
      |             ~~^~
foo.cc:134:7: warning: statement has no effect [-Wunused-value]
  134 |     n6+1;
      |     ~~^~
foo.cc:135:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
  135 |          if(x1=7)
      |             ~~^~
foo.cc:136:7: warning: statement has no effect [-Wunused-value]
  136 |     n7+1;
      |     ~~^~
foo.cc:137:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
  137 |          if(x1=8)
      |             ~~^~
foo.cc:138:7: warning: statement has no effect [-Wunused-value]
  138 |     n8+1;
      |     ~~^~
foo.cc:139:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
  139 |          if(x1=9)
      |             ~~^~
foo.cc:140:7: warning: statement has no effect [-Wunused-value]
  140 |     n9+1;
      |     ~~^~

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