0_0_11279053_32505.cpp: In function `int main()':
0_0_11279053_32505.cpp:57: error: `w1' undeclared (first use this function)
0_0_11279053_32505.cpp:57: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_11279053_32505.cpp:57: error: `w2' undeclared (first use this function)
0_0_11279053_32505.cpp:60: error: `ans' undeclared (first use this function)
0_0_11279053_32505.cpp: At global scope:
0_0_11279053_32505.cpp:62: error: expected declaration before '}' token
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