Codeforces Round 986 (Div. 2) || Editorial for Problem A,B,C

A. Alice's Adventures in "Chess" || B. Alice's Adventures in Permuting || C. Alice's Adventures in Cutting Cake
contest URL: codeforces.com...
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B solution: void solve(){ int n, b, c; cin >> n >> b >> c; if (n = v) { sum_front[k] = sum_front[k - 1] + current_sum; last_end[k] = r - 1; l = r; } else { sum_front[k] = 1e18; last_end[k] = n; } } // Assign from end vi sum_end(m + 1, 1e18); vi first_start(m + 1, n); sum_end[0] = 0; first_start[0] = n; int r_ptr = n - 1; current_sum = 0; for (int k = 1; k = 0 && current_sum < v) { current_sum += a[l_ptr]; l_ptr--; } if (current_sum >= v) { sum_end[k] = sum_end[k - 1] + current_sum; first_start[k] = l_ptr + 1; r_ptr = l_ptr; } else { sum_end[k] = 1e18; first_start[k] = -1; } } int max_Alice = -1; for (int k = 0; k = 0) { cout