sysy-data/functional/sy/77_substr.sy

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2024-01-09 19:48:14 +08:00
int MAX(int a, int b)
{
if (a == b)
return a;
else if (a > b)
return a;
else
return b;
}
int max_sum_nonadjacent(int arr[], int n)
{
int temp[16] = {};
temp[0] = arr[0];
temp[1] = MAX(arr[0], arr[1]);
int i = 2;
while (i < n) {
temp[i] = MAX(temp[i - 2] + arr[i], temp[i - 1]);
i = i + 1;
}
return temp[n - 1];
}
int longest_common_subseq(int arr1[], int len1,
int arr2[], int len2)
{
int p[16][16] = {};
int i, j;
i = 1;
while (i <= len1) {
j = 1;
while (j <= len2) {
if (arr1[i - 1] == arr2[j - 1]) {
p[i][j] = p[i - 1][j - 1] + 1;
} else {
p[i][j] = MAX(p[i - 1][j], p[i][j - 1]);
}
j = j + 1;
}
i = i + 1;
}
return p[len1][len2];
}
int main()
{
int A[15] = {8, 7, 4, 1, 2, 7, 0, 1, 9, 3, 4, 8, 3, 7, 0};
int B[13] = {3, 9, 7, 1, 4, 2, 4, 3, 6, 8, 0, 1, 5};
int An, Bn;
putint(max_sum_nonadjacent(A, 15));
putch(10);
putint(longest_common_subseq(A, 15, B, 13));
putch(10);
return 0;
}