0_0_38590919_25264.cpp: In function 'int main()':
0_0_38590919_25264.cpp:11:8: error: 'cal' was not declared in this scope
if(cal=='+') printf("%d\n",a+b);
^~~
0_0_38590919_25264.cpp:11:8: note: suggested alternative: 'char'
if(cal=='+') printf("%d\n",a+b);
^~~
char
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