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- #include <iostream>
- constexpr int SIZE = 3;
- int main()
- {
- double A[SIZE][SIZE] = {0};
- double B[SIZE][SIZE] = {0};
- for (int i = 0; i < SIZE; ++i)
- for (int j = 0; j < SIZE; ++j)
- std::cin >> A[i][j];
- for (int k = 0; k < SIZE; ++k)
- for (int l = 0; l < SIZE; ++l) {
- for (int i = 0; i <= k; ++i) {
- for (int j = 0; j <= l; ++j) {
- B[k][l] += A[i][j];
- }
- }
- }
- for (int i = 0; i < SIZE; ++i) {
- for (int j = 0; j < SIZE; ++j)
- std::cout << B[i][j] << " ";
- std::cout << std::endl;
- }
- return 0;
- }
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