foo.cc: In function 'int main()':
foo.cc:17:17: warning: unused variable 'j' [-Wunused-variable]
   17 |     int n,s,i,t,j;
      |                 ^
foo.cc:24:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   24 |                 scanf("%d %d",&jm[i].a,&jm[i].b);
      |                 ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

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Found 5 testcases.
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