#include #ifdef DEBUG #include #else #define dump(...) #endif /** * @title Sqrt decomposition * @docs sqrt_decomposition.md */ struct SqrtDecomposition{ const int N; const int BLOCK_SIZE; const int BLOCK_NUM; SqrtDecomposition(int N): N(N), BLOCK_SIZE((int)sqrt(N)), BLOCK_NUM((N + BLOCK_SIZE - 1) / BLOCK_SIZE) { } template void init(const Func &f){ for(int i = 0; i < BLOCK_NUM; ++i){ const int L = i * BLOCK_SIZE; const int R = std::min(N, (i+1) * BLOCK_SIZE); f(i, L, R); } } template void query(int l, int r, const FuncBlock &func_block, const FuncRange &func_range){ // [l, r) for(int i = 0; i < BLOCK_NUM; ++i){ const int L = i * BLOCK_SIZE; const int R = std::min(N, (i+1) * BLOCK_SIZE); if(l <= L and R <= r){ func_block(i, L, R); }else if((L <= l and l < R) or (L < r and r <= R)){ func_range(i, L, R, std::max(l, L), std::min(r, R)); } } } }; int main(){ int N; while(std::cin >> N){ std::vector A(N); for(int i = 0; i < N; ++i) std::cin >> A[i]; SqrtDecomposition sd(N); std::vector X_sum(sd.BLOCK_NUM); std::vector sq_sum(sd.BLOCK_NUM); std::vector A_sum(sd.BLOCK_NUM); sd.init( [&](int i, int L, int R){ for(int j = L; j < R; ++j){ A_sum[i] += A[j]; sq_sum[i] += A[j] * A[j]; } } ); int Q; std::cin >> Q; while(Q--){ int type; std::cin >> type; if(type == 1){ int64_t l, r, x; std::cin >> l >> r >> x; --l; sd.query( l, r, [&](int i, int L, int R){ X_sum[i] += x; sq_sum[i] += x * (2 * A_sum[i] + x * (R - L)); A_sum[i] += x * (R - L); }, [&](int i, int L, int R, int ll, int rr){ for(int j = L; j < R; ++j){ A[j] += X_sum[i]; } X_sum[i] = 0; for(int j = ll; j < rr; ++j){ A_sum[i] += x; sq_sum[i] += x * (2 * A[j] + x); A[j] += x; } } ); //dump(X_sum, A_sum, sq_sum, A); }else{ int64_t l, r; std::cin >> l >> r; --l; int64_t ans = 0; sd.query( l, r, [&](int i, int L, int R){ ans += sq_sum[i]; }, [&](int i, int L, int R, int ll, int rr){ for(int j = L; j < R; ++j){ A[j] += X_sum[i]; } X_sum[i] = 0; for(int j = ll; j < rr; ++j){ ans += A[j] * A[j]; } } ); std::cout << ans << "\n"; } } } return 0; }