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// Обход матрицы: пропуск отрицательных, вес по клетке, ограничение сверху.
#include <cstdio>
#include <vector>
int weight(int row, int col) {
return (row + col) % 3;
}
int clamp_value(int v) {
if (v > 100) {
return 100;
}
if (v < 0) {
return 0;
}
return v;
}
int skip(int v) {
return v < 0;
}
int contribute(int v, int w) {
return clamp_value(v) * w;
}
int overflow_guard(int total) {
return total > 1000000 ? -1 : total;
}
int reduce_matrix(const std::vector<std::vector<int>> &m) {
int total = 0;
for (size_t r = 0; r < m.size(); r++) {
for (size_t c = 0; c < m[r].size(); c++) {
int v = m[r][c];
if (skip(v)) {
continue;
}
int w = weight((int)r, (int)c);
total += contribute(v, w);
}
}
return overflow_guard(total);
}
int main() {
std::vector<std::vector<int>> m = {{5, -2, 300}, {7, 4, -1}};
printf("свёртка %d\n", reduce_matrix(m));
return 0;
}