foo.cc: In function 'int main()':
foo.cc:22:26: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   22 |                 if(a[j]<0&&a[i]>=0||a[j]>=0&&a[i]<0){
      |                    ~~~~~~^~~~~~~~~
foo.cc:10:48: warning: iteration 100004 invokes undefined behavior [-Waggressive-loop-optimizations]
   10 |                 for(int i=1;i<=100005;i++) g[i]=0;
      |                                            ~~~~^~
foo.cc:10:30: note: within this loop
   10 |                 for(int i=1;i<=100005;i++) g[i]=0;
      |                             ~^~~~~~~~
foo.cc:10:48: warning: 'void* __builtin_memset(void*, int, long unsigned int)' forming offset [800040, 800047] is out of the bounds [0, 800040] of object 'g' with type 'long long int [100005]' [-Warray-bounds]
   10 |                 for(int i=1;i<=100005;i++) g[i]=0;
      |                                            ~~~~^~
foo.cc:5:11: note: 'g' declared here
    5 | long long g[100005];
      |           ^

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