0_0_4198553_17669.c: In function `main':
0_0_4198553_17669.c:1: error: `cin' undeclared (first use in this function)
0_0_4198553_17669.c:1: error: (Each undeclared identifier is reported only once
0_0_4198553_17669.c:1: error: for each function it appears in.)
0_0_4198553_17669.c:1: error: `cout' undeclared (first use in this function)
0_0_4198553_17669.c:1: error: `NO' undeclared (first use in this function)
0_0_4198553_17669.c:1: error: `endl' undeclared (first use in this function)
0_0_4198553_17669.c:1: error: `YES' undeclared (first use in this function)
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