foo.cc: In function 'int main()':
foo.cc:18:72: warning: format '%d' expects argument of type 'int*', but argument 4 has type 'char (*)[20]' [-Wformat=]
   scanf("%d %s %d %f",&rec[i].id,rec[i].name,&rec[i].phone,&rec[i].secs);
                                              ~~~~~~~~~~~~~             ^
foo.cc:18:72: warning: format '%f' expects argument of type 'float*', but argument 5 has type 'int*' [-Wformat=]
foo.cc:18:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %s %d %f",&rec[i].id,rec[i].name,&rec[i].phone,&rec[i].secs);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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