foo.c: In function 'main':
foo.c:10:9: warning: statement with no effect [-Wunused-value]
   10 |         for (i; i < n ; i++)
      |         ^~~
foo.c:7:13: warning: unused variable 'm' [-Wunused-variable]
    7 |         int m, s, t, temp;
      |             ^
foo.c:36:13: warning: 'ch' may be used uninitialized [-Wmaybe-uninitialized]
   36 |         min = ch[0];
      |         ~~~~^~~~~~~
foo.c:5:13: note: 'ch' declared here
    5 |         int ch[10];
      |             ^~

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