0_0_20702803_1795.c: In function 'main':
0_0_20702803_1795.c:35:27: error: 'b' undeclared (first use in this function)
printf("%d\n", dp[b]);
^
0_0_20702803_1795.c:35:27: note: each undeclared identifier is reported only once for each function it appears in
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