Longest Common Prefix

char* longestCommonPrefix(char** strs, int strsSize) {
if(strsSize == 0)return "";
for(int i = 0 ; strs[0][i] ; i ++){
for(int j = 1 ; j < strsSize ; j ++){
if(strs[j][i] != strs[0][i]){
strs[j][i] = 0;
return strs[j];
}
}
}
return strs[0];
}