foo.c: In function 'main':
foo.c:9:21: warning: iteration 6 invokes undefined behavior [-Waggressive-loop-optimizations]
    9 |                 m[i]=a+b-8;
      |                 ~~~~^~~~~~
foo.c:7:22: note: within this loop
    7 |         for(int i=1;i<=7;i++){
      |                     ~^~~
foo.c:13:21: warning: iteration 6 invokes undefined behavior [-Waggressive-loop-optimizations]
   13 |                 if(m[i]>x){
      |                    ~^~~
foo.c:12:22: note: within this loop
   12 |         for(int i=1;i<=7;i++){
      |                     ~^~~

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