#include <iostream>
int main() {
int a[] = {5,9,4,7,4,9,9,7,7,0,8,7,6,7,2,7,3};
int sum = 0;
int maxSum = 0;
int i = 2;
int length = sizeof(a)/sizeof(*a);
for (; i < length; i++) {
sum = a[i] + a[i-1] + a[i-2];
if (sum > maxSum) {
maxSum = sum;
}
}
std::cout << "maxSum = " << maxSum << std::endl;
}
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