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code.c: In function ‘main’:
code.c:8:7: warning: format ‘%f’ expects argument of type ‘float *’, but argument 2 has type ‘double *’ [-Wformat=]
 scanf("%f", &num1);
       ^
code.c:9:7: warning: format ‘%f’ expects argument of type ‘float *’, but argument 2 has type ‘double *’ [-Wformat=]
 scanf("%f", &num2);